Pressure in Gases MCQ (Multiple Choice Questions) PDF Download

Air trapped inside a single-piston-cylinder exerts a pressure of 760 mmHg. If its volume is increased by 30% at a constant temperature, the pressure exerted would be equal to

1. 533 mmHg
2. 544 mmHg
3. 584 mmHg
4. 633 mmHg

In gases, pressure is

1. directly proportional to volume
2. inversely proportional to volume
3. directly proportional to friction
4. inversely proportional to heat

Air trapped inside a single-piston-cylinder exerts a pressure of 760 mmHg. If its volume is increased by 20% at a constant temperature, the pressure exerted would be equal to

1. 533 mmHg
2. 544 mmHg
3. 584 mmHg
4. 633 mmHg

For a constant temperature, Boyle's law states that

1. the pressure of a fixed amount of gas is directly proportional to the volume of the gas
2. the pressure of a fixed amount of gas is inversely proportional to the volume of the gas
3. the pressure of a fixed amount of gas is independent of the volume of the gas
4. None of the above

If air at a pressure of 2 MPa is compressed such that the new volume of the air is one eighth of its initial volume, then the new pressure of the air is

1. 0.25 M Pa
2. 2 M Pa
3. 8 M Pa
4. 16 M Pa