A volume of 2.5 l of a sample of a gas at 27°C and 1 bar pressure is compressed to a volume of 500 m — States of Matter and Gaseous State Chemistry Question
Question
A volume of 2.5 l of a sample of a gas at 27°C and 1 bar pressure is compressed to a volume of 500 ml keeping the temperature constant, the percentage increase in pressure is
Answer: B
💡 Solution & Explanation
At constant temperature: P1 * V1 = P2 * V2. Given: P1 = 1 bar, V1 = 2.5 l, V2 = 500 ml = 0.5 l. P2 = (1 * 2.5) / 0.5 = 5 bar. Increase in pressure = P2 - P1 = 5 - 1 = 4 bar. Percentage increase = (Increase in pressure / Initial pressure) * 100 = (4 / 1) * 100 = 400%.
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