A fixed mass of ideal gas does A → B isobaric expansion to twice the volume, B → C isochoric pressure drop to half, and C → A isothermal compression. Which describes the V - T graph?

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PhysicsHeat & ThermoThermodynamics Laws & Specific Heats of GasesHard2 minQB

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A fixed mass of ideal gas does $A \to B$ isobaric expansion to twice the volume, $B \to C$ isochoric pressure drop to half, and $C \to A$ isothermal compression. Which describes the $V$ - $T$ graph?

Options:

Answer:

Solution:

$A B$ : $V \propto T$ , a line through the origin. $BC$ : $V$ is fixed while $T$ falls (pressure halves), so a vertical line. $C A$ : isothermal, so horizontal. A.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermodynamics Laws & Specific Heats of Gases

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