7
12 A gas is trapped inside a cylinder by a movable piston. The length of the gas column is 50cm and
the pressure inside the cylinder is p.
50 cm
gas
p
The piston is pushed in a distance of 30 cm, so that the length of the gas column is now 20 cm.
The temperature of the gas does not change.
What is the new pressure of the gas?
A
D 2. 5p
C 1. 5p
в 0. 6р
0. 4p
