Product Code: TD-8565

## Description

Adiabatic and isothermal processes are difficult for most introductory physics students to understand. PASCO’s Adiabatic Gas Law Apparatus provides the ideal dem­on­stra­tion for student learning.

Experiments

PASCO’s Adiabatic Gas Law Apparatus can be used with our 850 Universal Interface. The computer functions as a 3-channel storage oscilloscope, generating graphs for pressure, temperature, and volume, as well as integrating the area under a Pressure vs. Volume curve to determine the work done on the gas.

## Features

• Volume Transducer: A linear po­ten­tial divider is mounted on the side of the piston. A 5-Volt source from the comput­er is applied across the potentiometer element. The voltage from the com­mu­ta­tor brush on the cylinder is used to indicate the position of the piston and the volume of the confined gas.
• Pressure Sensor: A solid-state, piezoresistive device that forms part of a bridge circuit is mounted at the base of the cylinder.
• Temperature Sensor: Mounted in the cylinder on the top of the base. The active element is fine nickel wire with a high surface-to-mass ratio. The wire’s temperature changes rapidly as the gas compresses or expands.

## Applications

• Compare the final pressure and temperature: values predicted by the Adiabatic Gas Law.
• Measure the work done on the gas: compare it to the change in internal energy and the theoretical work performed.
• Determine gamma: the ratio of specific heats for the gas (Cp/Cv).
• Use monatomic, diatomic and polyatomic gases: determine the effects of molecular structure on gamma.
• Investigate isothermal com­pres­sion and expansion.

## What’s Included

• 1x Adiabatic Gas Law Apparatus
• 1x Instruction Manual, Experiment Guide
• 1x Signal Cables 3.5 mm plug to 5-pin DIN
• 1x Power Adapter 9 V DC @ 1 A

## Recommended Accessories

 PASCO Capstone Software 850 Universal Interface UI-5000