1--According to kinetic theory of gases:(a) the pressure exerted by a gas is proportional to mean square velocity of the molecules.(b) the pressure exerted by the gas is proportional to the root mean square velocity of the molecules.(c) the root mean square velocity is inversely proportional to the temperature.(d) the mean translation Kinetic energyof the molecule is directly proportional to the absolute temperature. 2-- If a gas expands at constant temperature(a) the pressure of the gas decreases.(b) the kinetic energy of the molecules remains the same.(c) the kinetic energy of the molecules decreases.(d) the number of molecules of the gas increases

vikas kumar , 10 Years ago

Grade 12th pass