States of Matter & Gases Quiz

Which of the following would INCREASE pressure of a gas inside a closed container?

• Increasing the temperature of the container.

• Decreasing the kinetic energy of the gas in the container.

• Increasing the volume of the container.

• Removing gas from the container.

At a temperature of 298 K, a sample of gas occupies a volume of 6.0 L. Assuming pressure is constant, if the temperature is DOUBLED, what volume does the gas occupy?

• 3.0 L

• 12 L

• 5.0 L

• 14.9 L

Assume temperature is constant. If a sample of gas at a pressure of 2.0 atm occupies a volume of 3.0 L and the volume of the gas is DECREASED to 1.5 L, the new pressure would be ___ atm. Please type your answer to the nearest whole integer, do not include units, alpha text, or spaces.

Mathematical Equivalence

ON

A student makes the graph below to summarize and display the results of an investigation. Which of the following is a problem with the student's graph?

• The temperature change takes longer than 30 minutes to occur.

• Scientific investigations must use the Celsius temperature scale.

• No material can be cooled to a temperature below 0 Kelvin.

• No material can be heated above a temperature of 20 Kelvin.

Which of the following represents a correct condition for standard temperature and pressure (STP)? Select 3.

• 273 K

• 1 atm

• 0°C

• 273°C

• 760 atm

A sample of hydrogen gas under 4 kPa of pressure has a volume of 60 L. The pressure is changed to 1 kPa. What is the new volume of the gas sample? Assume temperature remains constant.

• 15 L

• 57 L

• 180 L

• 240 L

Which temperature is equivalent to 100 K?

• -173°C

• -100°C

• 300°C

• 373°C

A sample of neon gas is at a temperature of 293 K and a pressure of 1 atm. In order for this gas to be under standard conditions (STP), which of the following should be done?

• Lower the temperature to 273K.

• Lower to pressure to 0 atm.

• Raise the pressure to 101.3 atm.

• Lower the temperature to 0 K.

A bottle containing a gas with a strong odor is opened in the front of the classroom. Students soon smell the gas because the gas molecules...

• rapidly and randomly diffuse throughout the room.

• react with other gases present in the air.

• release scent particles into the room.

• travel rapidly toward the students without colliding with other particles.

The diagram shows a sample of hydrogen gas in a sealed iron container. The collisions shown cause which effect on the container walls?

• dissolution

• pressure

• surface tension

• ionization