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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?
 2 years ago
 2 years 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?
 2 years ago
 2 years ago

This Question is Closed

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
Wobbe Index 24.
 2 years 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
 2 years 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
 2 years 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)
 2 years 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?
 2 years 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.
 2 years ago

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

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

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

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

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
agree
 2 years ago

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

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

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

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

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

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

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

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

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
Impossible
 2 years ago

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

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

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

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

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

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

vishweshshrimali5 Group TitleBest ResponseYou've already chosen the best response.0
??
 2 years ago

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

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

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

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

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

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