A gas occupies 45 cm³ at pressure 3 atm. Calculate the new volume if the pressure becomes 9 atm.
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Correct Answer: Option A
Explanation:
Boyle’s law states that pressure and volume are inversely proportional when temperature is constant. This means if pressure increases, the volume decreases. Using the formula PāVā = PāVā:<br/>3 × 45 = 9 × Vā<br/>135 = 9Vā<br/>Vā = 15 cm³. The gas becomes compressed because the pressure is higher.
Boyle’s law states that pressure and volume are inversely proportional when temperature is constant. This means if pressure increases, the volume decreases. Using the formula PāVā = PāVā:<br/>3 × 45 = 9 × Vā<br/>135 = 9Vā<br/>Vā = 15 cm³. The gas becomes compressed because the pressure is higher.