NEET-XII-Physics
26: Laws of Thermodynamics
- #7An ideal gas goes from the state i to the state f as shown in figure. The work done by the gas during the process
(a) is positive
(b) is negative
(c) is zero
(d) cannot be obtained from this information.
FiguredigAnsr: cAns :
(c) is zero
Work done by the gas during the process, `` ∆W=P∆V``
`` ``
Here,
P = Pressure
`` ∆``V = change in volume.
Since the process described in the figure is isochoric, P = kT. As volume remains constant (`` ∆``V = 0), `` ∆``W = 0.
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