Question

The heat will travel from 50 cals to 100 cals ?

Answer 1

Answer:

Heat absorbed q=100cal

Work done on the system, w=+50cal ltBrgt Applying the first law of thermodynamics,

ΔD=q+w=(100+50)=150calorie

In the above examples, the final state is same but the paths adopted are different. Thus, the change in energy of the system depends onthe intial and finial states but does not depend on the path by which the final state has reached, q and w are, therefore, not state functions but ΔU is a state functions.

Explanation:

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