SCIENCE Reviewer

Which of the following statements about Kinetic Molecular Theory of gasses is false?

• There are no attractive or repulsive forces between gasses

• The speed of the gas particles is constant regardless of its temperature

Marco weighs two kinds of balloon. He found out that the inflated balloon is heavier than the deflated. What does this indicate?

• gas has mass

• gas has pressure

Jane can still pump air in the party balloon even though it is already inflated. What explains this phenomenon?

• balloons look better if their size is bigger

• air molecules can be compressed

Each container with varying volume has 1.0 mole of oxygen gas at 30.0 degrees celsius. In which container will pressure be the lowest?

• In 1L container

• In 4L container

Which of the following phenomena best illustrates Charles’ Law?

• expansion of the balloon as it is being submerged in hit water

• breathing apparatus being used by a patient

Which of the following indicates the volume of a gas?

• 1,500 mmHg

• 2.5 liters

Records show that the indicates of tire explosion in high during summer season. Which of the following gives the best explanation for this observation?

• high temperature during summer season causes the air inside the tire to expand

• vehicles’ tires are not well/maintained

Gab wants to have a portable oxygen tank. A 5.00 liter oxygen gas exerts a pressure of 1.00 atmosphere. How much pressure is needed for this gas to be compressed in a 2.00 liter cylinder, provided there is no temperature change?

• 3.0 atm

• 2.5 atm

Which of the following statements best describe Charles’ Law?

• As temperature increases, the volume increases

• As the temperature increases, the volume decreases

Which of the following is NOT a unit used to measure the volume occupied by a gas?

• millilimeter

• pascal