Two gases of equal masses are in thermal equilibrium. If Pa, Pb and Va, Vb are their respective pressures and volumes, then which relation is true?
2Pa Va = Pb Vb
Pa ≠ Pb, Va ≠ Vb
Pa / Va = Pb / Vb
Pa Va = Pb Vb
If for a gas , this gas is made with which type of molecules ?
Diatomic
Mixture of diatomic and polyatomic
Monoatomic
Polyatomic
R.M.S velocity of a molecule is C at pressure P. If pressure is increased two times, then r.m.s velocity becomes
0.5 C
C
2 C
3 C
Two gases are at absolute temperature 300 K and 350 K respectively. The ratio of average kinetic energy of their molecules is:
7:6
6:7
36:49
49:36
One kg of a diatomic gas is at a pressure of 8×104N/m2. The density of the gas is 4 kg/m3. What is the energy of the gas due to its thermal motion?
3×104 J
5×104 J
6×104 J
7×104 J
The equation of state for 5 g of oxygen at a pressure P and temperature T, when occupying a volume V, will be:
PV = (5/32) RT
PV = 5 RT
PV = (5/2) RT
PV = (5/16) RT
An ideal gas is expanding such that PT2 = constant. The coefficient of volume expansion of the gas is:
A gas at one atmosphere and having volume 100 ml is mixed with another gas of equal moles at 0.5 atm and having volume 50 ml in flask of one litre, what is the final pressure?
05 atm
1 atm
0.75 atm
0.125 atm
Temperature of oxygen kept in a vessel is raised by 10C at constant volume. Heat supplied to the gas may be taken partly as translational and partly rotational kinetic energies. Their respective shares are:
60%, 40%
50%, 50%
100%, zero
40%, 60%
The Graph of specific heat at constant volume for a monoatomic gas is :
