In: Physics
A fixed number of moles of an ideal gas are kept in a container
of volume V and an absolute temperature T.
If T doubles while V is held constant, the new net internal energy
of the gas will be ________ times the original internal energy of
the gas.
A: 1/4 | B: 1/2 | C: 1/sqrt(2) | D: equal to | E: sqrt(2) | F: 2 | G: 4 |
If T and V are both doubled, the new r.m.s. velocity of the
molecules in the gas will be _________ times the original r.m.s.
molecular velocity.
A: 1/4 | B: 1/2 | C: 1/sqrt(2) | D: equal to | E: sqrt(2) | F: 2 | G: 4 |
Comment
On doubling the temperature the new internal energy of the gas will be 2 times the original internal energy.
On doubling temperature and volume, the r.m.s velocity of the gas will be square(2) times the r.m.s molecular velocity of the gas.