EASY
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According to Charles’s law, V1T.

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Important Questions on Thermal Physics

MEDIUM
Average volume available to a molecule in a sample of a gas at STP is
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A perfect gas at 27°C is heated at constant pressure so as to double its volume. The increase in temperature of the gas will be

MEDIUM
Two moles of an ideal gas is contained in a cylinder fitted with a frictionless movable pistion, exposed to the atmosphere, at an initial temperature T0. The gas is slowly heated so that its volume becomes four times the initial value. The work done by the gas is
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The volume of a water molecule is (Take, density of water is 1000 kg m-3 and Avogadro's number =6×1023 mole-1)
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A certain mass of a gas occupies a volume of 2 L at STP. To what temperature the gas must be heated to double its volume, keeping the pressure constant?
MEDIUM
Assertion: A gas can be liquefied at any temperature by increase of pressure alone.

Reason: On increasing the pressure the temperature of gas increases at constant volume.
MEDIUM
At constant temperature, the pressure of a gas is decreased by 20%. The percentage change in the volume
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According to Boyle's law, the shape of the graph between pressure and reciprocal of volume is _____.
EASY
At a constant pressure, of the following graphs the one which represents the variation of the density of an ideal gas with the absolute temperature T, is
MEDIUM
Pressure remaining the same, volume of a given mass of an ideal gas increases for every degree centigrade rise in temperature by a definite fraction of its volume at:
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Pressure remaining the same, the volume of a given mass of an ideal gas increases for every degree centigrade rise in temperature by definite fraction of its volume at
MEDIUM
Two inflated balloons (I) and (II) having volume 600 mL and 1500 mL at 300 K are taken as shown in diagram. If maximum volume of inner and outer balloons are 800 mL and 1800 mL respectively then, find the balloon which will burst first on heating ?

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MEDIUM
A certain sample of a gas has a volume of 0.2 L measured at 1 atm pressure and 0ºC. At the same pressure but 273ºC, its volume will be
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The gas law which relates the volume of a gas to the number of molecules of the gas is
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Volume-temperature graph at atmospheric pressure for a monoatomic gas (V in m3, T in K) is

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An ideal gas is initially at temperature T and volume V. Its volume is increased by ΔV due to an increase an increase in temperature ΔT, pressure remaining constant. The physical quantity δ=ΔVVΔT varies with temperature are
MEDIUM
If two gases under the same conditions have same number of molecules then they must have same _____.
MEDIUM
To double the volume of a given mass of an ideal gas at 27 °C, keeping the pressure constant, one must raise the temperature in degree centigrade to _____°C.
HARD
Hydrogen gas is filled in a balloon at 20°C. If temperature is made 40°C, pressure remaining same, what fraction of hydrogen will come out ?
EASY
500 mL of nitrogen at   27°C is cooled to  5°C at the same pressure. The new volume becomes