Pasco TD-8572 HEAT ENGINE_ GAS LAW APPARATUS Manuel d'utilisateur télécharger pdf (Page 5)

012-06014C Heat Engine/Gas Law Apparatus

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

1 2 3 4 5 6 7 8 9 10 ... 22 23

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Pasco TD-8572 HEAT ENGINE_ GAS LAW APPARATUS Manuel d'utilisateur Page 5

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