A gas occupies a volume of 20 cubic meters at 9,000 pascals. If the pressure is lowered to 5,000 pascals, what volume will the gas occupy?
Answer (2)
We need to consider no change in the temperature of gas (isothermal transformation)
Volume and pressure are inversely proportional magnitudes, so we can write:
P 1 . V 1 = P 2 . V 2 9.20 = 5. V 2 V 2 = 5 180 = 36 m 3
The new volume of the gas when the pressure is lowered from 9000 pascals to 5000 pascals is 36 cubic meters, calculated using Boyle's Law. This increase in volume occurs because pressure and volume are inversely related. When pressure decreases, the volume increases accordingly.
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