Chemistry
Volume of certain amount of a gas at 25°C and 100 cm Hg pressure is 80 mL. The gas is expanded to 160 mL keeping the temperature constant. Calculate the pressure of the expanded gas.
Gas Laws
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Answer
V1 = Initial volume of the gas = 80 mL
P1 = Initial pressure of the gas = 100 cm Hg
V2 = Final volume of the gas = 160 mL
P2 = Final pressure of the gas = ?
By Boyle's Law:
Substituting the values :
∴ Final pressure of the gas = 50 cm of Hg.
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