Correct expression for density of an ideal gas mixture of two gases 1 and 2, where `m_(1)` and `m_(2)` are masses and `n_(1)` and `n_(2)` are moles and `M_(1)` and `M_(2)` are molar masses.

Two perifect gases at absolute temperatures T_(1) and T_(2) are mixed. The absolute temperature of the mixture is T. there is no loss of energy.If m_(1) and m_(2) are masses of molecules and n_(1) and n_(2) are number of molecules, then

Two ideal polyatomic gases at temperature T_(1) and T_(2) are mixed so that there is no loss of energy . If F_(1) and F_(2), m_(1) and m_(2) ,n_(1) and n_(2) be the degrees of freedom, masses, number of molecules of the firest and second gas respectively, the temperature of mixture of these two gases is :

Supposing Newton's law of gravitation for gravitation forces F_(1) and F_(2) between two masses m_(1) and m_(2) at positions r_(1) and r_(2) read where M_(0) is a constant of dimension of mass, r_(12) = r_(1) - r_(2) and n is a number. In such a case,

Supposing Newton's law of gravitation for gravitation forces F_(1) and F_(2) between two masses m_(1) and m_(2) at positions r_(1) and r_(2) read where M_(0) is a constant of dimension of mass, r_(12) = r_(1) - r_(2) and n is a number. In such a case,

Two perfect gases (1) and (2) are at temperatures T_(1) and T_(2) . If the number of molecules of the two gases are n_(1) and n_(2) and the masses of the molecules m_(1) and m_(2) , find the resulting temperature when the two gases are mixed. Assume that there is no loss of energy on mixing the two gases.

The molecular velocities of two gases at same temperature are u_(1) and u_(2) , their masses are m_(1) and m_(2) respectively, which of the following expression is correct ?

The molecular velocities of two gases at same temperature are u_(1) and u_(2) , their masses are m_(1) and m_(2) respectively, which of the following expression is correct ?

The molecular velocities of two gases at same temperature are u_(1) and u_(2) , their masses are m_(1) and m_(2) respectively, which of the following expression is correct ?