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Callisto
Group Title
Which of the following statements concerning the manufacture of town gas in Hong Kong is/are correct?
(1)Town gas is produced from coal.
(2)Town gas contains hydrogen as the major component.
(3)Oxygen is added to enhance the flammability of town gas prior to its delievery to consumers.
A：(1) only
B：(2)only
C：(1) and (3) only
D：(2) and (3) only
I know the answer. Is the statement (3) correct? Why or why not?
 one year ago
 one year ago
Callisto Group Title
Which of the following statements concerning the manufacture of town gas in Hong Kong is/are correct? (1)Town gas is produced from coal. (2)Town gas contains hydrogen as the major component. (3)Oxygen is added to enhance the flammability of town gas prior to its delievery to consumers. A：(1) only B：(2)only C：(1) and (3) only D：(2) and (3) only I know the answer. Is the statement (3) correct? Why or why not?
 one year ago
 one year ago

This Question is Closed

mathslover Group TitleBest ResponseYou've already chosen the best response.0
so according to you C is correct?
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
second one is correct also hydrogen is present in 50% composition in Coal gas ( town gas ) as per my info.
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
Actually, I'm asking if statement (3) is correct.
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
i think 3 is not correct as i think it is burnt in the absence of oxygen
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
I can't believe things can be burnt without oxygen..
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
(3) is nonsense
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
oxygen is added At consumption, along with a high temperate
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
But concerning town gas?
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
Actually, there are two questions for statement (3) (a) Is oxygen added to town gas prior to its delievery to consumers? (b) Is the purpose of adding oxygen to enhance the flammability of town gas?
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
a) is correct
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
what is town gas ?
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
coal gas @UnkleRhaukus
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
natural cola seam gas ?
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
i though so
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
I got it
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
Town gas, produced from naphtha and natural gas, is a clean, safe and reliable gaseous fuel. Source: http://www.towngas.com/Eng/Corp/AbtTG/HKBus/Production.aspx I didn't know it's natural cola seam gas or coal gas...
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
is not a clean industry at all
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
@Callisto the answer is a) coal gas contains 5% of ethylene that is used to increase luminous flame
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
i ment coal not cola*
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
A：(1) only ?
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
Sorry!!! @UnkleRhaukus
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
im still deciding between (1) and (2)
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
1) is correct 2) is also correct since hydrogen is present in 50% composition in coal gas 3) not correct
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
sarcastic mood? ;D but that is not in options
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
im not sure if produced is the right wording in (1)
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
I'm sure (1) is not correct.
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
Coal gas (also town gas and illumination gas) is a flammable gaseous fuel made by the destructive distillation of coal containing a variety of calorific gases including hydrogen, carbon monoxide, methane and volatile hydrocarbons together with small quantities of noncalorific gases such as carbon dioxide and nitrogen.  wikipedia 1) is absolutely correct
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
but how r u sure @Callisto ?
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
produced from naphtha and natural gas < both are from petroleum. Also, don't forget I have the answer already.
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
hmn so finally 2) is correct if you r sure that 1) is not correct
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
how do fossil fule deposits work ,
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
As I mentioned before, I'm asking if (3) is correct, not (1) or (2).
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
It is wrong as per me..
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
*my info.
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
Explanations?
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
Ethylene is used for flammability of town gas not oxygen Ethylene is present in 5% composition in coal gas..
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
http://www.towngas.com/Eng/Corp/AbtTG/HKBus/Production.aspx Please refer to the site.
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
I'm sorry that I hid some words in the question. Look like I have to make it clearer...
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
that matters a lot callisto : hong kong
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
Question edited. Note that even though I'm a student here, I don't know the information related.
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
It's not mentioned in the book nor there is any hint in the question.
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
Wobbe Index 24.
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
Actually I am not sure that I can help you in this since I don't know about the condition in Hong Kong
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
I just said that even student here don't know the situation lol
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
*students
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
http://www.towngas.com/Eng/Corp/AbtTG/HKBus/Production.aspx this says all that we wanted : 1) Your main question... statement 3)... that is correct 2) "2)" is correct also... (but it is not asked by you)
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
Thanks for posting the same link again..( 3times in this post already) Why is statement (3) correct?
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
statement 3 is correct explanation : Nitrogen and Oxygen 0% – 3.3% at least this shows that oxygen is present in coal gas.. In the given components there, oxygen is the best gas responsible for flammability.
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
that is my opinion...
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
Then, you're just assuming it's used to enhance flammability but not explaining it really.
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
"sorry", you must prefer a coal gas engineer :D
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
@vishweshshrimali5
 one year ago

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
Well @Callisto can u please give me a short summary what has happened till now
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
I don't know if statement (3) in the question is correct Which of the following statements concerning the manufacture of town gas in Hong Kong is/are correct? (1)Town gas is produced from coal. (2)Town gas contains hydrogen as the major component. (3)Oxygen is added to enhance the flammability of town gas prior to its delievery to consumers.
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
statement (3) is not correct. oxygen is not added until burning
 one year ago

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
agree
 one year ago

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
I think so ?? and even wiki thinks so
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
@vishweshshrimali5 leave wiki.. I hate it now .. :'( It is not so much reliable as per my info.... since acc. to it oxygen is not present in it but other site says it is
 one year ago

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
Oxygen is not present
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
But ones who set the exam paper don't think so.. @vishweshshrimali5
 one year ago

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
wiki is correct it is prepared by destructive distillation that is heating in absence of oxygen
 one year ago

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
Why ?
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
that is what i tried to say @vishweshshrimali5
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
I don't know... That's why I asked.
 one year ago

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
You know the answer
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
It's D, I did mention I had the answer.
 one year ago

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
Impossible
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
Explanations?
 one year ago

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
Callisto I searched for it on internet town gas also called as coal gas is obtained by destructive distillation of coal that is heating coal in absence of oxygen
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
though m not having perfect explanation for 3) as i am not living in hong kong :( right vishwesh... wiki says that
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
but : http://www.towngas.com/Eng/Corp/AbtTG/HKBus/Production.aspx
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
@mathslover I'm really sorry to say it's not about winning.
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
No problem, it was a joke though
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
And also you cannot use that data to say it's added to enhance flammability, even though it might.
 one year ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
as I know that this is not a quiz or anything to win about.. and if I had correct explanation that i deserved that but I don't deserve to say "I won" ..
 one year ago

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
@Callisto is sometheing still left ?
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
You mean?
 one year ago

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
I mean have we got the answer
 one year ago

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
??
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
The answer is D.
 one year ago

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
I mean to say have you got that the answer D is wrong in fact
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
The answer is provided by the examination authority
 one year ago

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
sorry I can't compete with examination authority they are subject experts
 one year ago

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
we have to accept their answer
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
So, the only option left is that I have to remember this fact without knowing the reasons behind?
 one year ago

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
yes :'( first time I have to say that .............. sorry..... :'(
 one year ago

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
Sorry again
 one year ago

Callisto Group TitleBest ResponseYou've already chosen the best response.1
It's okay. It's not the first time I heard it after all though
 one year ago
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