A fixed mass of nitrogen gas is compressed inside a cylinder, with no change in temperature.
The table below shows the pressure P1 P_1\,P1 and volume V1 V_1\,V1 before the gas is compressed, and the volume V2 V_2\,V2 after the gas is compressed.
| pressure in kPa | volume in m3\text{m}^3m3 | |
|---|---|---|
| before the gas is compressed | P1=140P_1 = 140P1=140 | V1=1.6V_1 = 1.6V1=1.6 |
| after the gas is compressed | P2=P_2 =P2= | V2=0.40V_2 = 0.40V2=0.40 |
Calculate the pressure P2 P_2\,P2 after the gas is compressed. Use the equation:
P2=P1×V1V2 P_2 = \frac{P_1 \times V_1}{V_2} P2=V2P1×V1