Determining the Adiabatic Exponent cp/cV of Various Gases using the Gas Elastic Resonance Apparatus

The Gas Elastic Resonance Apparatus is designed to determine the adiabatic exponent of gases by studying gas elastic resonance. The apparatus uses a sealed air column with a magnetic piston that is excited into forced oscillations using an alternating electromagnetic field. By determining the resonance frequency of the system, students can calculate the adiabatic exponent of air and compare the behavior of different gases such as carbon dioxide and neon. Manufactured by Atico Export India.

Principle

The experiment is based on the resonance of a gas column enclosed within a sealed chamber. A magnetic piston oscillates under the influence of an alternating electromagnetic field, causing periodic compression and expansion of the gas. When the excitation frequency matches the natural frequency of the gas column, resonance occurs and the piston oscillates with maximum amplitude. The measured resonance frequency is used to determine the adiabatic exponent of the gas.

Objectives

• Determine the adiabatic exponent of air.
• Study gas elastic resonance.
• Measure the resonance frequency of a gas column.
• Investigate the oscillatory behavior of gases under forced excitation.
• Compare the adiabatic properties of different gases such as carbon dioxide and neon.

System Components

Gas Elastic Resonance Apparatus :

• Quantity: 1

Analog Multimeter :

• Quantity: 1

Function Generator :

• Quantity: 1

V-Shaped Stand Base :

• Quantity: 1

Fine Regulating Valve :

• Quantity: 1

Neon Gas Canister :

• Quantity: 1

Carbon Dioxide Gas Canister :

• Quantity: 1

Three-Way Valve :

• T-Shaped
• Quantity: 1

Silicone Tubing :

• Diameter: 7 mm
• Length: 1 m
• Quantity: 1

Rubber Tubing :

• Diameter: 4 mm
• Length: 1 m
• Quantity: 1

Tubing Connector :

• Size: 4 to 15 mm
• Quantity: 1

Connecting Lead :

• Current Rating: 19 A
• Length: 50 cm
• Color: Blue
• Quantity: 1

Connecting Leads :

• Current Rating: 19 A
• Length: 100 cm
• Red/Blue Pair
• Quantity: 1

Gas Elastic Resonance System :

• Demonstrates resonance in a sealed gas column.

Magnetic Piston :

• Magnetically driven piston provides stable and controlled oscillations.

Forced Oscillation Mechanism :

• Alternating electromagnetic field generates adjustable excitation frequencies.

Multiple Gas Compatibility :

• Suitable for experiments with air, carbon dioxide, neon, and other gases.

Accurate Frequency Measurement :

• Enables precise determination of the resonance frequency.

Educational Design :

• Ideal for studying thermodynamic properties and gas behavior.