Question

which statement best describes gay-lussac’s law?
pressure is inversely proportional to volume.
pressure is inversely proportional to temperature.
pressure is directly proportional to volume.
pressure is directly proportional to temperature.

Explanation:

Gay - Lussac's law states that for a given mass of a gas at constant volume, the pressure of the gas is directly proportional to its absolute temperature. Let's analyze each option:

• Option 1: Pressure is inversely proportional to volume is Boyle's law, not Gay - Lussac's law.
• Option 2: Pressure is inversely proportional to temperature is incorrect for Gay - Lussac's law.
• Option 3: Pressure is directly proportional to volume is not related to Gay - Lussac's law.
• Option 4: This option correctly states the relationship in Gay - Lussac's law as pressure is directly proportional to temperature (at constant volume).

Answer:

D. Pressure is directly proportional to temperature. (assuming the last option is D, if the options were labeled as A, B, C, D with the last option being D. If the labels were different, adjust accordingly. But based on the content, the correct statement is "Pressure is directly proportional to temperature".)