Question

a certain volume of a gass is under a pressure of 900 mm of HG when the pressure is increased by 300 mm the gas occupies 2700 ml if this constant temperature calculate the initial volume of a gas

Answer 1

Answer: 900 ml

Explanation:

Let P be the initial pressure of the gas.

Let p be the final pressure of the gas.

Let V be the initial volume of the gas.

Let v be the final volume of the gas.

P = 900 mm

p = 300 mm

v = 2700 ml = 2.7 L

P × V = p × v   (By Boyle's Law)

900 × V = 300 × 2.7

V = 300 × 2.7 / 900

∴ V = 0.9 L

∴ Initial volume of gas is 900 ml

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