Pressure in Gases Multiple Choice Questions with Answers – PDF Download

MCQ 1: 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

MCQ 2: In gases, pressure is:

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

MCQ 3: 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

MCQ 4: 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

MCQ 5: 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