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 2 years ago
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
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?

This Question is Closed

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

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

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

mathslover
 2 years ago
Best ResponseYou've already chosen the best response.0i think 3 is not correct as i think it is burnt in the absence of oxygen

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

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

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

Callisto
 2 years ago
Best ResponseYou've already chosen the best response.1Actually, 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?

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

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

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

Callisto
 2 years ago
Best ResponseYou've already chosen the best response.1Town 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
 2 years ago
Best ResponseYou've already chosen the best response.0is not a clean industry at all

mathslover
 2 years ago
Best 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

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

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

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

mathslover
 2 years ago
Best ResponseYou've already chosen the best response.01) is correct 2) is also correct since hydrogen is present in 50% composition in coal gas 3) not correct

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

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

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

mathslover
 2 years ago
Best ResponseYou've already chosen the best response.0Coal 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

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

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

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

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

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

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

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

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

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

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

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

Callisto
 2 years ago
Best ResponseYou've already chosen the best response.1It's not mentioned in the book nor there is any hint in the question.

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

Callisto
 2 years ago
Best ResponseYou've already chosen the best response.1I just said that even student here don't know the situation lol

mathslover
 2 years ago
Best ResponseYou've already chosen the best response.0http://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
 2 years ago
Best ResponseYou've already chosen the best response.1Thanks for posting the same link again..( 3times in this post already) Why is statement (3) correct?

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

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

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

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

Callisto
 2 years ago
Best ResponseYou've already chosen the best response.1I 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
 2 years ago
Best ResponseYou've already chosen the best response.0statement (3) is not correct. oxygen is not added until burning

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

mathslover
 2 years ago
Best 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

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

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

vishweshshrimali5
 2 years ago
Best ResponseYou've already chosen the best response.0wiki is correct it is prepared by destructive distillation that is heating in absence of oxygen

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

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

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

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

vishweshshrimali5
 2 years ago
Best ResponseYou've already chosen the best response.0Callisto 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
 2 years ago
Best ResponseYou've already chosen the best response.0though m not having perfect explanation for 3) as i am not living in hong kong :( right vishwesh... wiki says that

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

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

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

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

mathslover
 2 years ago
Best ResponseYou've already chosen the best response.0as 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
 2 years ago
Best ResponseYou've already chosen the best response.0@Callisto is sometheing still left ?

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

vishweshshrimali5
 2 years ago
Best ResponseYou've already chosen the best response.0I mean to say have you got that the answer D is wrong in fact

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

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

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

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

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

Callisto
 2 years ago
Best ResponseYou've already chosen the best response.1It's okay. It's not the first time I heard it after all though
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