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Pressure verus Volume graphs for two pro...

Pressure verus Volume graphs for two process for ideal gas is shown in figure. In each case state of a system is changed from A to B along the straight lines shown. In which case, will the heat added to the system be more?

A

Case I

B

Case II

C

Is non-zero but the same in both cases

D

Is zero in both cases

Text Solution

Verified by Experts

`DeltaQ=Delta u+w`
Heat added would depend on change in internal energy as work done by the gas is same in both cases.
As, `TpropPV`, we find `DeltaT` is more in case 1 `&` hence change in internal energy will be more in case 1. This Heat added will be more in case 1.
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