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A gas can be ken from A to B via two dif...

A gas can be ken from A to B via two different processes ACB and ADB. When path ACB is used 60 J of heat flows into the system and 30 J of work is done by the system. If path ADB is used work done by the system is 10 J. The heat Flow into the system in path ADB is :

A

`100 J`

B

`40 J`

C

`80 J`

D

`20 J`

Text Solution

Verified by Experts

The correct Answer is:
B
For path ACB : `triangleQ= +60J`
`W= +30J`
`:. triangleU=30J`
For path ADB : `triangleU= 30J` (Same)
`W= +10J`
`:. triangleQ= W+triangleU= 40J`.
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