MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryThermodynamics and ThermochemistryConcept of Heat and Work
Two moles of Helium gas undergo a reversible cyclic process as shown in figure. Assuming gas to be ideal. What is the work done for the process C to D?
A.–800 R ln 2✓ Correct
B.zero
C.+200 R ln 2
D.–600 R ln 2
Explanation
C to D is isothermal process Work Done = 1 2 P nRTln 2R 400 ln 2 800 P R ln 2