Consider the following two-step process. Heat is allowed to flow out of an ideal gas at constant volume so that its pressure drops from 2.2 atm to 1.4 atm. then the gas expands at constant pressure from a volume of 5.9 L to 9.3 L where the temperature reaches its original value.
Find a) the total work done by the gas in the process
b) the change in internal energy of the gas in the process
c) the total heat flow into or out of the gas

Question

Consider the following two-step process. Heat is allowed to flow out of an ideal gas at constant volume so that its pressure drops from 2.2 atm to 1.4 atm. then the gas expands at constant pressure from a volume of 5.9 L to 9.3 L where the temperature reaches its original value.
Find a) the total work done by the gas in the process
b) the change in internal energy of the gas in the process
c) the total heat flow into or out of the gas

jennychan12 · Answer

http://tuhsphysics.ttsd.k12.or.us/Tutorial/NewIBPS/PS15/3CFCE512.JPG

tcy · Answer

Just use the 1st law of thermodynamics to solve

tcy · Answer

remember to convert to SI units

jennychan12 · Answer

i know it's Pascals for pressure. Is the SI for volume Liters?

tcy · Answer

cubic metre

jennychan12 · Answer

oh ok thanks. :)