The real gas most closely approaches the behaviour of an ideal gas at
15 atm and 200 K
1 atm and 273 K
0.5 atm and 500 K
15 atm and 500 K
At identical temperature and pressure, the rate of diffusion of hydrogen gas is 3 √3 times that of a hydrocarbon having molecular formula CnH2n-2. What is the value of n?
1
4
3
8
The temperature at which 28 g of N2 will occupy a volume of 10.0 L at 2.46 atm is
299.6K
0oC
273 K
10oC
If temperature changes from 27oC to 127oC, the relative percentage change in rms velocity is
1.56
2.56
15.6
82.4
By the ideal gas law, the pressure of 0.60 mole NH3 gas in a 3.00 L vessel at 25oC is
48.9 atm
4.89 atm
0.489 atm
489 atm
The liquified metal, which expands on solidification, is
Ga
Al
Zn
Cu
In which one of the following, does the given amount of chlorine exert the least pressure in a vessel of capacity I dm3 at 273 K?
0.0355g
0.071 g
6.0231g
6.023 × 1021molecules
