Question

The volume of fixed amount of gas at constant pressure increases with rise in temperature

Answer 1

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At constant pressure, the volume of a fixed mass of a gas is directly proportional to its absolute temperature, is. Charles' law states that the volume of a fixed mass of a gas increases or decreases by 1/273.15 of its volume at 0oC for each degree rise or fall in temperature, if pressure is kept constant.

Answer 2

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The collision of the particles with the walls of the vessels give rise to the pressure of the gas.