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A system consisting of 1 mol of an ideal...

A system consisting of 1 mol of an ideal gas undergoes a reversible process, `A to B to C to A` (schematically indicated in the figure below). If the temperature at the starting point A is 300 K and the work done in the process `B to C ` is 1 L atm, the heat exchanged in the entire process is L atm is

A

`1.0`

B

`0.0`

C

`1.5`

D

`0.5`

Text Solution

Verified by Experts

The correct Answer is:
C
For process `A to C, W=0 DeltaE=0,q=0`
For process `A to B`
`W = -1 (1.5-1)= -0.5 ` lit. atm
`DeltaE=q+W`
`0=q+W`
`q = - W = -(-0.5) =0.5` lit. atm
For process `B to C,W=1` atm
`DeltaE=q+W`
`0= q-W`
`-q=W = -1` atm
`:.` Total heat exchanged = 1.5
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