Physics questions
20027 published questions with worked solutions.
- The root mean square velocity of the molecules in a sample of helium is (5/7)^ th that of the molecules in a sample of hydrogen....
- A sample of hydrogen at temperature T, volume V and pressure P have speed v and in a sample of oxygen at temperature T, volume 2V...
- A jar has mixture of Hydrogen and Oxygen gases in the ratio 1:5. Then the ratio of mean KE. of hydrogen and oxygen molecules is
- At what temperature does the average translational KE of a molecule in a gas becomes equal to KE of an electron accelerated from...
- The temperature at which mean kinetic energy of an ideal gas molecule will be doubled that at 27^ C is
- The kinetic energy per kg of nitrogen molecules at 175^ C is (Molecular weight of nitrogen 28 and R=8320 J ,kmol^ -1 K^ -1 )
- If the temperature of a gas is increased from 0^ C to 273^ C , then the ratio of average kinetic energy of the gas molecules is
- A jar has a mixture of hydrogen and oxygen in the ratio 4:5. Then the ratio of mean kinetic energy of hydrogen and oxygen...
- The density of air at a pressure of 10^ 5 N ,m^ -2 is 1.2 kg ,m^ -3 . Under these conditions, the root mean square velocity of...
- The pressure exerted by the gas on the walls of a container is measured by
- The pressure exerted by an ideal gas on the walls of the chamber does not depend on the
- A gas at a pressure 2P_o is contained in a vessel. If the masses of all the molecules are halved and their speeds doubled, the...
- A gas in an enclosure has a pressure P and the temperature T K . Another gas enclosed in a container of the same volume has a...
- If the mean kinetic energy of the molecules of a gas is (1/3)^ rd of its value at 27^ C , then the temperature of the gas will be
- The temperature of a gas is measure of the
- What is the K.E. of translational motion of molecules in 15 gram of ammonia gas at 37^ C ? (Molecular weight of ammonia is 17.03...
- A gas at a pressure P_0 is contained in a vessel. If the masses of all the molecules are halved and their velocities are doubled,...
- The Kinetic energy per kg of nitrogen molecules at 127^ C is (R=8.31 10^ 3 J ,kmol^ -1 K^ -1 )
- The Kinetic energy of one gram molecule of a gas at 127^ C is (R=8.31 J/mol ,K )
- The RMS velocity of gas molecules is 300 m/s . If its absolute temperature is reduced to half and molecular weight doubled, then...