PASCO TD-8572 HEAT ENGINE_ GAS LAW APPARATUS - Manual (Page 13)

012-06014C Heat Engine/Gas Law Apparatus
9
®
PR ES SU RE
SE NS OR
0-7 00 kPa
(AB SO LU TE)
CI-6 532
PR ES SU RE PO RT 700 kP a M AX
DR Y A IR O NLY PR ES SU RE PO RT MA TIN G C ON NE CT OR :
PA SC O P AR T N O. 640 -02 1 INT ER FAC E PA SC O PA SC O 650 0 SE RIE
TO INT ER FAC E
Experiment 4: Combined Gas Law (Gay-Lussac’s )
*For details on setting up and operating the Pressure Sensor and the Temperature Sensor with
Science Workshop, please consult the instruction sheets for the Pressure Sensor and the Tempera-
ture Sensor and the User’s Guide for Science Workshop.
Theory
Charles’ law states that V is proportional to T, and Boyle’s law states that V is proportional to 1/P.
Combining these, we have:
V =
aT
P
The combined gas law predicts that for a given mass of gas, if V is held constant, P is proportional
to T.
➀ The Gas Law Apparatus is not used in this
experiment. Use a short piece of tubing to
connect the pressue sensor to the air chamber
fitted with the 2-hole stopper.
➁ Insert the Temperature Sensor into the other
hole of the rubber stopper.
➂ Connect the Pressure Sensor and the Tem-
perature Sensor to the computer interface, and
set up the Science Workshop program to
graph temperature versus pressure.
Setup
Figure 4.1. Experimental setup
hot plate Pressure
Sensor
Temperature
Sensor
to
computer
interface
to computer interface
Use a silicon lubricant on the end of
the Temperature Probe to aid
insertion and to prevent damage to
the probe.
➤ Note: You can substitute a thermometer in the water container for the Temperature Sensor.
Be sure to keep the tip of the thermometer from touching the bottom of the container.
➃ Place the air chamber in the Pyrex container
and turn on the hot plate.
Equipment Required:
• Pressure Sensor (CI-6532)
• Science Workshop computer interface*
• Temperature Sensor (CI-6505)
• hot plate
• Pyrex beaker with water
• ice