Heat Transfer and Thermofluilds

[Gaby]

Homework Statement

Three 60-litre high-pressure gas cylinders contain gaseous fire
suppressants. The suppressants are:
1) IG-100 (which is 100% N2),
2) Carbon dioxide (CO2),
3) IG-55 (50% vol. N2 and 50% vol. Ar).
The suppressants are stored in gaseous form under the pressure
170 atm (1 atm=101325 Pa) and at normal temperature (T=293K).
(i) Calculate the mass fraction of nitrogen and argon in gas
mixture IG-55.
(8 marks)
(ii) Assume ideal gas behaviour of the suppressants. What is the
mass of the gas contained in each cylinder?
(8 marks)
(iii) The suppressants are to be released in an environment at
normal conditions of pressure and temperature (p=1atm,
T=293K). What volume will be occupied by each suppressant
after their release into the environment? Assume isothermal
expansion in your calculation.

Relevant Equations

Ideal gas law.

I have completed Q1 and Q2 (i - iii); not sure if I correct in my answers; i would be very grateful for any feed back, thanks.

 

[Chestermiller]

Please submit only one question per thread. Please choose the one you want us to respond for in this thread, and edit out the references here to the other question. Then, start a separate thread with the other question.

 

[Gaby]

HI, apologies how do I edit this feed, thanks.

 

[Chestermiller]

HI, apologies how do I edit this feed, thanks.

Below the text in a post, there is an edit link.