Question

A gas cylinder has a volume of 0.4 dm3. It contains Butane at a pressure of 100 kPa and a temperature of 20⁰C. What pressure is needed to compress the gas to a volume of 0.05 dm3 at the same temperature?

Answer 1

Answer:

Given,

Intimal pressure, P

1

=1Mpa

Initial and final temperature, T

1

=27+273=300KandT

2

=23+273=296K

From ideal gas equation

PαT (At constant volume)

P

2

=

T

1

T

2

P

1

=

300

296

×1=0.98Mpa

Change in pressure, P

2

−P

1

=1−0.986=0.014Mpa

Hence, change in pressure is 0.014Mpa

Explanation:

I HOPE THIS HELP YOU WITH