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Determining the adiabatic exponent cp/cV of air after Rüchardt /
Determining the adiabatic exponent cp/cV of air after Rüchardt

Determining the adiabatic exponent c_p/c_V of air after Rüchardt

VP2.5.3.1

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Description

The experiment P2.5.3.1 determines the adiabatic exponent of air from the oscillation period of a ball which caps and seals a gas volume in a glass tube, whereby the oscillation of the ball around the equilibrium position causes adiabatic changes in the state of the gas. In the equilibrium position, the force of gravity and the opposing force resulting from the pressure of the enclosed gas are equal. A deflection from the equilibrium position by Δx causes the pressure to change by

which returns the ball to the equilibrium position. The ball thus oscillates with the frequency

around its equilibrium position.

Components of equipment sets

1	371051 8	Oscillation tube with Mariotte's bottle
1	31327	Hand-held stop-watch, 60s/0.2s
1	31720 8	Precision aneroid barometer
1	59006 4	Plastic beaker
1	6753120 4	Vaseline, 100 g

Experiment Instructions

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P2.5.3.1 Determining the adiabatic exponent cp/cV of air after Rüchardt

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Determining the adiabatic exponent cp/cV of air after Rüchardt

Description

Components of equipment sets

Experiment Instructions

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Determining the adiabatic exponent c_p/c_V of air after Rüchardt