Which of the following statements regarding gas pressure is correct?
A)Gas pressure is commonly measured in units of pounds per square foot.
B)The pressure of air on the outside of a metal can with a low internal pressure is sufficient to crush the can.
C)If the volume of a container filled with a gas increases at constant temperature, the pressure will also increase.
D)If the temperature of a gas sample increases while the gas is held at a constant volume, the pressure will decrease.
E)When the volume of a container of a gas increases, the gas particles will stay together in the bottom of the container.

Question

Quizplus · Accepted Answer

Gas pressure is commonly measured in units such as psi (pounds per square inch) or atm (atmospheres), not pounds per square foot (A is incorrect). According to Boyle's Law, if the volume of a gas decreases at constant temperature, the pressure will increase (C is incorrect). According to Gay-Lussac's Law, if the temperature of a gas sample increases while the gas is held at a constant volume, the pressure will increase (D is incorrect). When the volume of a container of a gas increases, the gas particles will disperse evenly throughout the container, not stay together at the bottom (E is incorrect). The correct statement is B, which describes the phenomenon of atmospheric pressure being able to crush a can with low internal pressure.

Which of the Following Statements Regarding Gas Pressure Is Correct