First slide

Graphs

Question

An ideal gas goes from the state i to the state f as shown in figure. The work done by the gas during the process

Easy

A

is positive
B

is negative
C

is zero
D

cannot be obtained from this information.

Solution

The graph represents isochoric process. as $\large P\, \propto \,T$ volume is constant and work done by gas in an isochoric process is zero.

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