Q13 of 27 Page 87

A system goes from P to Q by two different paths in the P-V diagram as shown in Fig. 12.8. Heat given to the system in path 1 is 1000 J. The work done by the system along path 1 is more than path 2 by 100 J. What is the heat exchanged by the system in path 2?

From first law of thermodynamics,


Given,


We know that change in internal energy is same for two


different paths having same initial and final states.





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