Quiz on Gas Properties

Why do gas molecules move chaotically and continuously?

• Gas molecules have no mass.

• The distance between gas molecules is too close.

• The interaction force between molecules is too small.

• Gas molecules always push each other.

Which statement is false regarding gases?

• Gas molecules are very close to each other compared to liquid molecules.

• The interaction force between atoms and molecules is very weak.

• Gases have no definite shape and volume.

• Gases always occupy the entire volume of the container and can be easily compressed.

Which of the following is not a property of gases?

• Has a definite shape and volume.

• Molecules move completely randomly.

• Can be easily compressed.

• Has a smaller molecular interaction force than solids and liquids.

In which of the following cases is evaporation involved?

• Window glass fogs up on cold winter days.

• A glass of water diminishes when left outside in the sun.

• Butter left outside the fridge melts after a while.

• Putting water in the fridge to make ice.

Evaporation occurs

• at any temperature of the liquid.

• only occurs within the liquid.

• occurs at the same rate at all temperatures.

• only occurs with a few liquids.

For the same substance, which phase transition will reduce the interaction force between molecules the most?

• Melting.

• Freezing.

• Vaporization.

• Condensation.

"Absolute zero" is the temperature corresponding to

• 0 K.

• 0 degrees.

• 273 degrees.

• 273 K.

Which conclusion below is incorrect regarding the Celsius temperature scale?

• The symbol for temperature is t.

• Choose the melting point of ice at pressure.

Which of the following conclusions is incorrect regarding the Celsius temperature scale?

• The symbol for temperature is t.

• The reference point for melting ice at 1 atm pressure is 0°C.

• 1°C corresponds to 273 K.

• The unit of temperature measurement is °C.

When the absolute temperature increases by 6K, what happens to the Celsius temperature?

• The Celsius temperature increases by more than 6°C.

• The Celsius temperature increases by 279°C.

• The Celsius temperature increases by 6°C.

• The Celsius temperature increases by 267°C.