7.5 grams of gas occupy 5.6 liters of volume at STP. The gas is..
(Atomic weight of C, N, and O are 12, 14, 16 respectively)
(1) NO
(2)
(3) CO
(4)
The compressibility factor for 1 mol of a van der Waals gas at and 100 atmospheric pressure is found to be 0.5. The volume of gas is-
1. 2.0224 L
2. 1.4666 L
3. 0.8542 L
4. 0.1119 L
4 grams of an ideal gas occupies 5.6035 liters of volume at 546 K and 2 atm pressure. What is its molecular weight?
1. 4
2. 16
3. 32
4. 64
The kinetic energy of 4 moles of nitrogen gas at 127C is ......... Kcals. (R=2 cal )
1. 4400
2. 3200
3. 4800
4. 1524
A gaseous mixture contains 56 g of The pressure of mixture is 720 mm of Hg. The partial pressure of methane is
1. 75 mm
2. 160 mm
3. 180 mm
4. 215 mm
At oxygen was collected. If the temperature is constant, what volume will the oxygen occupy at 760 mm pressure?
1. 365 mL
2. 2 mL
3. 10 mL
4. 20 mL
At a certain pressure, volume of a gas at C is 20 litre. If the pressure and temperature are doubled, its volume will be
1. 20 liter
2. 40 liter
3. 8.2 liter
4. 10.9 liter
A gas has double the average velocity of gas at any temperature. The gas may be
1.
2.
3.
4.
The densities of two gases are in the ratio of 1:16. The ratio of their rates of diffusion is
1. 16 : 1
2. 4 : 1
3. 1 : 4
4. 1 : 16
The critical temperature of the water is higher than that of because the molecule has
1. fewer electrons than
2. two covalent bonds
3. V-shape
4. dipole moment