If the volume of a gas triples at constant temperature, what happens to its pressure?

Q: If the volume of a gas triples at constant temperature, what happens to its pressure?

P ÷ 3 - According to Boyle’s Law, the pressure of a fixed mass of gas at constant temperature is inversely proportional to its volume. Mathematically: P1V1=P2V2P_1 V_1 = P_2 V_2P1V1=P2V2 If the volume becomes 3 times its original value, the pressure decreases to one-third: P2=P13P_2 = \frac{P_1}{3}P2=3P1 This demonstrates that increasing volume lowers pressure when temperature remains constant. Other options like 3P or 6P are incorrect because pressure cannot increase as volume increases. Boyle’s Law is a fundamental concept in physical chemistry and is widely applied in gas storage, balloons, pistons, and laboratory calculations.

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Accepted Answer

P ÷ 3 - According to Boyle&rsquo;s Law, the pressure of a fixed mass of gas at constant temperature is inversely proportional to its volume. Mathematically:
P1V1=P2V2P_1 V_1 = P_2 V_2P1V1=P2V2
If the volume becomes 3 times its original value, the pressure decreases to one-third:
P2=P13P_2 = \frac{P_1}{3}P2=3P1
This demonstrates that increasing volume lowers pressure when temperature remains constant. Other options like 3P or 6P are incorrect because pressure cannot increase as volume increases.
Boyle&rsquo;s Law is a fundamental concept in physical chemistry and is widely applied in gas storage, balloons, pistons, and laboratory calculations.

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