The pressure and temperature of 4 dm³ of carbon dioxide gas are doubled. Then the volume of carbon dioxide gas would be

• 2 dm³

• 3 dm³

• 4 dm³

• 8 dm³

The gaseous reaction

A + B $\rightleftharpoons$ 2C + D + Q is most favoured at

• low temperature and high pressure

• high temperature and high pressme

• high temperature and low pressure

• low temperature and low pressure

Two gas cylinders having same capacity have been filled with 44 g of H₂ and 44 g of CO₂ respectively. If the pressure in CO₂ cylinder is 1 atmosphere at a particular temperature, the pressure in the hydrogen cylinder at the same temperature is 

• 2 atmosphere

• 1 atmosphere

• 22 atmosphere

• 44 atmosphere

Kinetic energy of one mole of an ideal gas at 300 Kin kJ is

• 3.74

• 348

• 34.8

• 3.48

Hydrogen diffuses six times faster than gas A. The molar  mass of gas A is

• 72

• 6

• 24

• 36

Dulong and Petit's law is valid only for

• metals

• non-metals

• gaseous elements

• solid elements

The extent of adsorption of a gas on a solid depends on

• nature of the gas

• pressure of the gas

• temperature of the gas

• all of the above

The cooling in refrigerator is due to

• reaction of the refrigerator gas

• expansion of ice

• the expansion of the gas in the refrigerator

• the work of the compressor

In the equation of state of an ideal gas PV = nRT, the value of the universal gas constant would depend only on

• the nature of the gas

• the pressure of the gas

• the units of the measurement

• None of the above

120.

The density of a gas is 1.964 g dm^-3 at 273 K and 76 cm Hg. The gas is :

• CH₄

• C₂H₆

• CO₂

• Xe