Two balloons of the same volume are filled wi t.h gases at the same pressure, one with hydrogen and the other with helium. Which of the two has the greater buoyancy (including the weight of the bag) and what is the ratio of buoyancies?

At the same temperature, hydrogen is more soluble in water tham helium. Which of the two has higher K_(H) value ?

Two vessels of the same volume and filled with the same gas at the same temperature. If the pressure of the gas in these vessel be in the ratio 1:2, then state : (i) the ratio of the rms speeds of the molecules, (ii) the ratio of the number of molecules.

Two vessels of the same volume contain the same gas at same temperature. If the pressure in the vessels is in the ratio of 1 : 2, then

Two closed pipes have the same fundamental frequency.One is filled with oxygen and the other with hydrogen at the same temperature. Ratio of their lengths respectively is

Two wires of the same material have equal lengths but A is thicker than other B . Which of the two has greater value of Young's modulus?

Two vessels of the same size are at the same temperature. One of them contains 1 g to H_2 gas, and the other contains 1 g to N_2 gas. Which of the vessels is under greater pressure or and why ?

Two identical vessels contain helium and hydrogen gases at same temperature, then

A balloon filled with oxygen is placed in a tank full of hydrogen gas at the same pressure is pricked with a sharp pointed needle. The volume of balloon just after the pricking would be

Two balloon are filled with equal moles of hydrogen and helium. Which balloon will contract first if holes of same size are made in them?