Question

1. A sample of gas occupies 10 L under a pressure of 1 atm. What will be its volume if the pressure is
increased to 2 atm? Assuming that temperature of the gas sample does not change
(1) 2L
(2) 5 L
(3) 10 L
(4) 1 L
2. A gas at a pressure of 5 atm is heated from 0° to 546°C and simultaneously compressed to 1/3 rd
of its original volume. Hence final pressure is
(1) 10 atm
(2) 45 atm
(3) 30 atm
(4) 5 atm
3. How much should the pressure be increased in order to decrease the volume of a gas by 5% at a
constant temperature?
(1) 5%
(2) 5.26%
(3) 10%
(4) 4.26%
4. A certain gas takes three times as long to effuse out as helium. Its molecular mass will be
(1) 27 u
(2) 36 u
(3) 64 u
(4) 9u​

Answer 1

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