A gas at `27^@ C` in a cylinder has a volume of 4 litre and pressure `100 Nm^-2`.
(i) Gas is first compressed at constant temperature so that the pressure is `150 Nm^-2` . Calaulate the change in volume.
(ii) It is then heated at constant volume so that temperature becomes `127^@ C`. Calculate the new pressure.

A certain mass of gas in a cylinder at 27^(@)C has a volume of 10 litre and pressure 100 N//m^(2) . (i) The gas is first compressed at constant temperature and the pressure is raised to 150 N//m^(2) . Find the change in volume. (ii) If the gas is then heated at constant volume and if the temperature is raised to 127^(@)C , find the new pressure.

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