Callisto
  • Callisto
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?
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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mathslover
  • mathslover
so according to you C is correct?
Callisto
  • Callisto
No
mathslover
  • mathslover
second one is correct also hydrogen is present in 50% composition in Coal gas ( town gas ) as per my info.

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More answers

Callisto
  • Callisto
Actually, I'm asking if statement (3) is correct.
mathslover
  • mathslover
oh k
mathslover
  • mathslover
wait
mathslover
  • mathslover
i think 3 is not correct as i think it is burnt in the absence of oxygen
Callisto
  • Callisto
I can't believe things can be burnt without oxygen..
UnkleRhaukus
  • UnkleRhaukus
(3) is nonsense
UnkleRhaukus
  • UnkleRhaukus
oxygen is added At consumption, along with a high temperate
Callisto
  • Callisto
But concerning town gas?
Callisto
  • Callisto
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?
mathslover
  • mathslover
a) is correct
UnkleRhaukus
  • UnkleRhaukus
what is town gas ?
mathslover
  • mathslover
coal gas @UnkleRhaukus
UnkleRhaukus
  • UnkleRhaukus
natural cola seam gas ?
UnkleRhaukus
  • UnkleRhaukus
i though so
mathslover
  • mathslover
I got it
Callisto
  • Callisto
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...
UnkleRhaukus
  • UnkleRhaukus
is not a clean industry at all
mathslover
  • mathslover
@Callisto the answer is a) coal gas contains 5% of ethylene that is used to increase luminous flame
UnkleRhaukus
  • UnkleRhaukus
i ment coal not cola*
Callisto
  • Callisto
A:(1) only ?
Callisto
  • Callisto
Sorry!!! @UnkleRhaukus
mathslover
  • mathslover
no
UnkleRhaukus
  • UnkleRhaukus
im still deciding between (1) and (2)
mathslover
  • mathslover
wait
mathslover
  • mathslover
1) is correct 2) is also correct since hydrogen is present in 50% composition in coal gas 3) not correct
Callisto
  • Callisto
wow....
mathslover
  • mathslover
sarcastic mood? ;D but that is not in options
UnkleRhaukus
  • UnkleRhaukus
im not sure if produced is the right wording in (1)
Callisto
  • Callisto
I'm sure (1) is not correct.
mathslover
  • mathslover
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 non-calorific gases such as carbon dioxide and nitrogen. - wikipedia 1) is absolutely correct
mathslover
  • mathslover
but how r u sure @Callisto ?
Callisto
  • Callisto
produced from naphtha and natural gas <- both are from petroleum. Also, don't forget I have the answer already.
mathslover
  • mathslover
hmn so finally 2) is correct if you r sure that 1) is not correct
UnkleRhaukus
  • UnkleRhaukus
how do fossil fule deposits work ,
Callisto
  • Callisto
As I mentioned before, I'm asking if (3) is correct, not (1) or (2).
mathslover
  • mathslover
It is wrong as per me..
mathslover
  • mathslover
*my info.
Callisto
  • Callisto
Explanations?
mathslover
  • mathslover
Ethylene is used for flammability of town gas not oxygen Ethylene is present in 5% composition in coal gas..
Callisto
  • Callisto
http://www.towngas.com/Eng/Corp/AbtTG/HKBus/Production.aspx Please refer to the site.
Callisto
  • Callisto
I'm sorry that I hid some words in the question. Look like I have to make it clearer...
mathslover
  • mathslover
that matters a lot callisto : hong kong
Callisto
  • Callisto
Question edited. Note that even though I'm a student here, I don't know the information related.
Callisto
  • Callisto
It's not mentioned in the book nor there is any hint in the question.
UnkleRhaukus
  • UnkleRhaukus
Wobbe Index 24.
mathslover
  • mathslover
Actually I am not sure that I can help you in this since I don't know about the condition in Hong Kong
Callisto
  • Callisto
I just said that even student here don't know the situation lol
mathslover
  • mathslover
lol
Callisto
  • Callisto
*students
mathslover
  • mathslover
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)
Callisto
  • Callisto
Thanks for posting the same link again..( 3times in this post already) Why is statement (3) correct?
mathslover
  • mathslover
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.
mathslover
  • mathslover
that is my opinion...
Callisto
  • Callisto
Then, you're just assuming it's used to enhance flammability but not explaining it really.
mathslover
  • mathslover
"sorry", you must prefer a coal gas engineer :D
mathslover
  • mathslover
@vishweshshrimali5
vishweshshrimali5
  • vishweshshrimali5
Well @Callisto can u please give me a short summary what has happened till now
Callisto
  • Callisto
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.
UnkleRhaukus
  • UnkleRhaukus
statement (3) is not correct. oxygen is not added until burning
vishweshshrimali5
  • vishweshshrimali5
agree
Callisto
  • Callisto
Sure?
vishweshshrimali5
  • vishweshshrimali5
I think so ?? and even wiki thinks so
mathslover
  • mathslover
@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
vishweshshrimali5
  • vishweshshrimali5
Oxygen is not present
Callisto
  • Callisto
But ones who set the exam paper don't think so.. @vishweshshrimali5
vishweshshrimali5
  • vishweshshrimali5
wiki is correct it is prepared by destructive distillation that is heating in absence of oxygen
vishweshshrimali5
  • vishweshshrimali5
Why ?
mathslover
  • mathslover
that is what i tried to say @vishweshshrimali5
Callisto
  • Callisto
I don't know... That's why I asked.
vishweshshrimali5
  • vishweshshrimali5
You know the answer
Callisto
  • Callisto
It's D, I did mention I had the answer.
vishweshshrimali5
  • vishweshshrimali5
Impossible
Callisto
  • Callisto
Explanations?
mathslover
  • mathslover
I WON
vishweshshrimali5
  • vishweshshrimali5
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
mathslover
  • mathslover
though m not having perfect explanation for 3) as i am not living in hong kong :( right vishwesh... wiki says that
mathslover
  • mathslover
but : http://www.towngas.com/Eng/Corp/AbtTG/HKBus/Production.aspx
Callisto
  • Callisto
@mathslover I'm really sorry to say it's not about winning.
mathslover
  • mathslover
No problem, it was a joke though
Callisto
  • Callisto
And also you cannot use that data to say it's added to enhance flammability, even though it might.
mathslover
  • mathslover
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" ..
vishweshshrimali5
  • vishweshshrimali5
@Callisto is sometheing still left ?
Callisto
  • Callisto
You mean?
vishweshshrimali5
  • vishweshshrimali5
I mean have we got the answer
vishweshshrimali5
  • vishweshshrimali5
??
Callisto
  • Callisto
The answer is D.
vishweshshrimali5
  • vishweshshrimali5
I mean to say have you got that the answer D is wrong in fact
Callisto
  • Callisto
The answer is provided by the examination authority
vishweshshrimali5
  • vishweshshrimali5
sorry I can't compete with examination authority they are subject experts
vishweshshrimali5
  • vishweshshrimali5
we have to accept their answer
Callisto
  • Callisto
So, the only option left is that I have to remember this fact without knowing the reasons behind?
vishweshshrimali5
  • vishweshshrimali5
yes :'( first time I have to say that .............. sorry..... :'(
vishweshshrimali5
  • vishweshshrimali5
Sorry again
Callisto
  • Callisto
It's okay. It's not the first time I heard it after all though

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