Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermodynamicsMedium2 minQB

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Passage / Comprehension

A sample of ideal gas is taken through the cyclic process shown in the figure. The temperature of the gas at state A is $T_{A} = 200$ K. At states B and C the temperature of the gas is the same.

Which of the following graphs best represents the cyclic process in a T-V diagram?

Options:

Answer:

Solution:

A $\to$ B is isochoric: a vertical segment in the T-V diagram.

B $\to$ C: $P$ falls linearly as $V$ grows, so $T = \frac{P V}{n R}$ rises to a maximum partway, then falls - a curved arc.

C $\to$ A: curved return with $T$ falling to $T_{A}$ ; only graph (D) has the vertical A $\to$ B segment and correctly sensed arcs.

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:Thermodynamics

⏱ 2mℹ️ Source: QB

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