1. | 2. | ||
3. | 4. | - |
1. | STP | 2. | 0°C, 2 atm |
3. | 0°C, 4 atm | 4. | 273°C, 4 atm |
Choose the correct option for graphical representation of Boyle's law, which shows a graph of pressure vs. volume of a gas at different temperatures:
1. | |
2. | |
3. | |
4. |
A mixture of and Ar gases in a cylinder contains 7 g of and 8 g of Ar. If the total pressure of the mixture of the gases in the cylinder is 27 bar, the partial pressure of is:
[Use atomic masses (in g ): N=14, Ar=40]
1. 12 bar
2. 15 bar
3. 18 bar
4. 9 bar
The minimum pressure required to compress 600 dm3 of a gas at 1 bar to 150 dm3 at 40°C is
1. 4.0 bar
2. 0.2 bar
3. 1.0 bar
4. 2.5 bar
Equal masses of H2, O2 and CH4 have been taken in a container of volume V at temperature 27 ºC in identical conditions. The ratio of the volumes of gases H2:O2 : CH4 would be:
1. 8:16:1
2. 16:8:1
3. 16:1:2
4. 8:1:2
A bubble of air is underwater at a temperature15°C and the pressure 1.5 bar. If the bubble rises to the surface where the temperature is 25°C and the pressure is 1.0 bar, what will happen to the volume of the bubble?
1. Volume will become greater by a factor of 2.5
2. Volume will become greater by a factor of 1.6
3. Volume will become greater by a factor of 1.1
4. Volume will become smaller by a factor of 0.70
If 400 ml gas at 500 torrs and 666.6 ml gas at 600 torrs is taken in a container of 3 liters, then the total pressure of the mixture is:
1. 200 torr
2. 400 torr
3. 600 torr
4. 50 torr