Question

A student performed an experiment to measure
pressure and volume of a gas at constant
temperature and noted the following:
Pressure (mm of Hg) Volume (cm)
100
80
125
200
40
у
32
A
X
Calculate the value of x and y. Draw a suitable graph.​

Answer 1

Answer:

ANSWER

Boyle's law can be stated as, for a given mass of a gas the product of pressure and volume is always constant at constant temperature.

If P

1

,P

2

,P

3

,P

4

are pressures of a gas in states 1,2,3,4 and corresponding volumes are V

1

,V

2

,V

3

,V

4

at constant temperature, then according to Boyle's law, P

1

V

1

=P

2

V

2

=P

3

V

3

=P

4

V

4

i) P

1

V

1

=P

2

V

2

⟶ 100×80=125×x

∴x=

125

100×80

=64

ii) P

1

V

1

=P

4

V

4

⟶ 100×80=y×32

∴y=

32

100×80

=250