Related InterviewSolutions

• When a gas filled in a closed vessel is heated through 1°C, its pressure increases by 0.4%. what is the initial temperature of the gas?
• Although the r.m.s. speed of gas molecules is of the order of the speed of sound in that gas, yet on opening a bottle of ammonia in one corner of a room its smell takes time in reaching the other corner. Explain. Why?
• On the basis of kinetic theory of gases, explain, how does a gas exert pressure?
• Although the velocity of air molecule is nearly 0.5 kms-1,yet the smell of scent spreads at a much slower rate, why?
• A cylinder containing an ideal gas is in vertical position and has a piston of mass M that is able to move up or down without friction (Fig. 13.2). If the temperature is increased,(a) both p and V of the gas will change.(b) only p will increase according to Charle’s law.(c) V will change but not p.(d) p will change but not V.
• A gas is filled in a cylinder fitted with piston at a definite temperature and pressure, Explain  on the basis of kinetic theory : on pulling the piston out, the pressure of the gas decreases.
• When a gas is heated, its temperature increase. Explain it on the basis of kinetic theory of gases.
• A gas is filled in a cylinder filled with a piston at a definite temperature of pressure. Explain on the basis of kinetic theory, the pressure of the gas increases by raising its temperature.
• The volume of vessel A is twice the volume of another vessel B, and both of them are filled with the same gas. If the gas in A is at twice the temperature and twice the pressure in comparison to the gas in B, what is the ratio between the gas molecules of A and B?
• Estimate the fraction of molecular volume to the actual volume occupied by oxygen gas at STP. Take the diameter of an oxygen molecules to be 3 Å