Question

which statement is a description of boyles law?
○ the temperature and volume of a gas are directly proportional when pressure is constant.
○ the temperature and volume of a gas are inversely proportional when pressure is constant.
○ the volume and pressure of a gas are directly proportional when temperature is constant.
○ the volume and pressure of a gas are inversely proportional when temperature is constant.

Explanation:

Boyle's law states that for a given mass of gas at constant temperature, the pressure and volume of the gas are inversely proportional. Let's analyze each option:

• First option: Talks about temperature and volume (Charles's law - related), not Boyle's law.
• Second option: Incorrect relationship for temperature - volume (Charles's law has direct proportionality at constant pressure), not Boyle's.
• Third option: Boyle's law is inverse, not direct, for volume - pressure at constant temperature.
• Fourth option: Matches the definition of Boyle's law (volume and pressure are inversely proportional when temperature is constant).

Answer:

The volume and pressure of a gas are inversely proportional when temperature is constant. (The fourth option in the list)