Question text
20 A fixed mass of gas is enclosed in a cylinder with a movable piston. cylinder gas piston The gas is initially at pressure p and has a volume V . 1 1 The temperature is kept constant. The piston is moved so that the pressure becomes p and the 2 volume becomes V . 2 Which equation is correct? p p A 1 = 2 V V 1 2 p V B 1 = 1 p V 2 2 C p V = p V 1 1 2 2 D p V = p V 1 2 2 1
20 A fixed mass of gas is enclosed in a cylinder with a movable piston.
cylinder
gas
piston
The gas is initially at pressure p and has a volume V .
1 1
The temperature is kept constant. The piston is moved so that the pressure becomes p and the
2
volume becomes V .
2
Which equation is correct?
p p
A 1 = 2
V V
1 2
p V
B 1 = 1
p V
2 2
C p V = p V
1 1 2 2
D p V = p V
1 2 2 1
Select your answer: