Find the molecular mass of a gas that takes three times more time to effuse as compared to He with the same volume
1. 9 u
2.64 u
3. 27 u
4.36 u
At the same temperature, the average molar kinetic energy of N2Â and CO is
1. KE1 > KE2
2.KE1Â < KE2
3. KE1 = KE2
4.insufficient information given
 If 1.204 x 1021 molecules of H2SO4 are removed from 392 mg of H2SO4, find the moles of H2SO4 left.
1. 4 x 10-3
2. 1.5 x 10-3
3.1.2 x 10-3
4.2 x 10-3
Find the fraction of the total pressure exerted by hydrogen if it is mixed with ethane in an empty container at 25℃
1.15/16
2. 1/16
3. 1/2
4. 1
Find the temperature at which the rate of effusion of N2 is 1.625 times to that of SO2 at 500℃
1. 620℃
2.173℃
3. 110℃
4.373℃
If the temperature is doubled, the average velocity of a gaseous molecule increases by
1. 4
2. 1.4
3. 2
4.2.8
 A container with a pin-hole contains equal moles of H2(g) and O2(g). Find the fraction of oxygen gas escaped at the same time when one-fourth of hydrogen gas escapes
1. 1/16
2. 1/4
3. 1/2
4. 1/8
What are the conditions for gas like Carbon monoxide to obey the ideal gas laws?
1. low temperature and low pressure
2.low temperature and high pressure
3. high temperature and low pressure
4.high temperature and high pressure