One way to determine if a relationship is inverse or direct is to find a proportionality

constant , K . from the data If this relationship is direct A = PV . If in is inverse * = Pol .

the relationship direct or inverse ? Calculate & for the seven ordered pairs in your does table

( divide or multiply the P and V values ) . Show the answers in the third column of the table

on the previous page .

Use Excel to plot the pressure ( ) VS the volume ( ) for both data sets . Attach these two

plots to your report . Do you think the relationship between the pressure and volume of a

confined

ined gas is direct or inverse ? Explain your answer below

Estimate the pressure in the syringe if the volume was increased to 40 m . ( show work )

PARTII: PRESSURE - TEMPERATURE RELATIONSHIP

Pressure

Temperature

REPS )

Temperature

Constant . A

(P / for AN

95- 58

20 . 6

2913 75

91 97

2 8

276.95

100 7

32.5

Make an Excel plot of pressure ( P ) VS temperature in Kelvin ( K ) . Be sure to properly label

this graph , and add a linear trendline with

on the graph . Attach this to your report .

ith the equation and correlation parameter quoted

8 . Based on the data and graph that you obtained for this experiment , express in words the

relationship between gas pressure and temperature

Write an equation to express the relationship between press

the symbols P. T and

ure and temperature ( K ) . Use

10 . Assume that at absolute zero you have no pressure being exerted by the gas . What

be the temperature in Celsius at which absolute zero is realized ? Use your graph trendlin

would

equation and show your calculations