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robgb
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Can anyone please help with the following questions?...
Two gas cylinders A and B for which Va = 30 litres and Vb = 10 litres are linked by a narrow pipe containing a valve. Initially the valve is closed and cylinder A is charged with an idea monotomic gas to a pressure Pa = 10Ma at Ta = 300K. Vessel V is evactuated and has pressure Pb = 0. The valve is slowly opened and the gas pressures allowed to equalise and the final temperature Ta = Tb = 300k.
a) Is the process quasistatic or not? Give reasons.
b) What is the final pressure? What is the change in internal energy?
c) Calculate the external work performed on the system.
d) Determine the total heat transferred to the system.
e) Would the answers to a-d change if the process was a free expansion rather than a controlled leak?
Many thanks
Two gas cylinders A and B for which Va = 30 litres and Vb = 10 litres are linked by a narrow pipe containing a valve. Initially the valve is closed and cylinder A is charged with an idea monotomic gas to a pressure Pa = 10Ma at Ta = 300K. Vessel V is evactuated and has pressure Pb = 0. The valve is slowly opened and the gas pressures allowed to equalise and the final temperature Ta = Tb = 300k.
a) Is the process quasistatic or not? Give reasons.
b) What is the final pressure? What is the change in internal energy?
c) Calculate the external work performed on the system.
d) Determine the total heat transferred to the system.
e) Would the answers to a-d change if the process was a free expansion rather than a controlled leak?
Many thanks
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