Question at position 1 At a constant temperature, as the pressure decreases, the volume of gas decreases.TrueFalse

Question

Question at position 1 At a constant temperature, as the pressure decreases, the volume of gas decreases.TrueFalse

BlackTom AI · Accepted Answer

Question restatement: At a constant temperature, as the pressure decreases, the volume of gas decreases. True or False?

Option 1: True. This statement says that lowering the pressure causes the volume to decrease. Under the ideal gas behavior at constant temperature, the pressure and volume are inversely related (PV = nRT). If pressure goes down while temperature stays the same, the product PV would need to remain constant, so the volume should actually increase, not decrease. Therefore, describing a decrease in volume when pressure decreases contradicts the fundamental P–V relationship, making this option incorrect.

Option 2: False. This statement asserts that decreasing pressure does not cause the volume to decrease; in fact, it implies the opposite behavior. Since at a fixed amount of gas and a fixed temperature the volume expands as pressure drops, the claim that volume decreases is inconsistent with the inverse proportionality between P and V. This option aligns with the correct qualitative understanding of the gas law under these conditions, so this option is consistent with the established relationship and is correct in this context.

Question at position 1 At a constant temperature, as the pressure decreases, the volume of gas decreases.TrueFalse

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