PASCO TD-8572 HEAT ENGINE_ GAS LAW APPARATUS - Manual (Page 5)

012-06014C Heat Engine/Gas Law Apparatus
1
®
Note: Use only non-caustic/non-toxic gases
such as air or helium.
tubing for
connecting
chamber to
cylinder
one-way
check valves
air chamber for
immersing in hot
or cold water
pressure port mating connectors
The PASCO TD-8572 Heat Engine/Gas Law Apparatus is
used for quantitative experiments involving the Ideal Gas
Law (as described below) and for investigations of a
working heat engine. The equipment allows the amount
of work done by thermal energy to be measured.
Introduction
The heart of this apparatus is a nearly friction-free piston/
cylinder system. The graphite piston fits snugly into a
precision-ground Pyrex cylinder so that the system
produces almost friction-free motion and negligible
leakage.
The apparatus includes the following equipment
• base apparatus (Figure 1)
- piston diameter: 32.5 mm ± 0.1
- mass of piston and platform: 35.0 g ± .06
• air chamber (Figure 2)
• 3 hose configurations: one with one-way check
valves and one with a clamp (Figure 2), and one
plain piece of tubing (not shown)
• 1 each, one-holed and two-holed rubber stopper
Figure 2. Air chamber and tubing
The Heat Engine/Gas Law Apparatus is designed with
two pressure ports with quick-connect fittings for connect-
ing to the air chamber tubing.
The apparatus can be connected to a Low Pressure Sensor
for use with PASCO computer interfaces.
Always release the tubing clamps prior to
storage to avoid permanently deforming the
tubing.
Do not apply lubricant to the piston or
cylinder.
Maximum Pressure: 345 kPa.
millimeter scale for
measuring piston
displacement
precision-bore pyrex
cylinder inside a
protective plastic shield
graphite piston
pressure port
mating
connectors
Figure 1. Base apparatus
piston-holding
thumbscrew
mass platform for adding
a load to do work
experiments
two port shut-off
valves
Do not immerse the base apparatus in
liquid.
Equipment
clamp