ASSESSMENT CARD 12

At a pressure of 405 kPa, the volume of a gas is 6.00 cm³. Assuming the temperature remains constant, at what pressure will the new volume be 4.00 cm³?

• 45 kPa

• 607.5 kPa

• 505 kPa

• 557.5 kPa

A volume of gas at 1.00 atm was measured at 326 cm³. What will be the volume if the pressure is adjusted to 1.90 atm?

• 455 cm³

• 171.58 cm³

• 506 cm³

• 555 cm³

If 36.5 m³ of a gas are collected at a pressure of 755 mm Hg, what volume will the gas occupy if the pressure is changed to 632 mm Hg?

• 45.7m³

• 40.5 m³

• 43.6 m³

• 55 m³

At 189 K, a sample of gas has a volume of 32.0 cm³. What volume does the gas occupy at 242 K?

• 43.6 cm³

• 40.97 cm³

• 50.7 cm³

• 55.5 cm³

The gas in a balloon occupies 2.25 L at 298 K. At what temperature will the balloon expand to 3.50 L?

• 463.56 cm³

• 440 cm³

• 550.36 cm³

• 505 cm³

A sample of gas has a volume of 852 mL at 25 ̊ C. What Celsius temperature is necessary for the gas to have a volume of 945 mL?

• 345 cm³

• 340 cm³

• 330.69 cm³

• 355 cm³

Which of the following statements is TRUE?

• Gases have definite shape and volume

• Gases are not matter

• Gases have compact particles

• Gases takes the shape of its container

Which among the following is NOT a unit of pressure?

• Newton

• Torr

• Pascals

• Atmosphere

Which among the following statements proves that gases are compressible?

• Gases are matter

• Gases has mass and takes up space

• The kinetic energy for molecules is the same for all gases

• Volume occupied by a gas is assumed to be mostly empty space.

All are properties of gases EXCEPT

• Gases have no definite shape and volume

• Gases diffuse readily

• Gases are compressible

• Gases have high densities