Physics - Heat & Thermo Question with Solution | TestHub
PhysicsHeat & ThermoThermodynamics Laws & Specific Heats of GasesMedium2 minQB
PhysicsMediumsingle choice
A gas is expanded from the same initial state to the same final volume, once adiabatically and once isothermally. In which case is more work done by the gas?
Options:
Answer:
B
Solution:
In the isothermal expansion the pressure falls slowly. In the adiabatic expansion the temperature falls too, so the pressure drops faster and the area under the curve is smaller. The isothermal work is larger. B.
Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermodynamics Laws & Specific Heats of Gases
⏱ 2mℹ️ Source: QB
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