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Thursday, 02 April 2026
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The pressure of air in a tire is \(22.5Nm^{-2}\) at 27°C. If the air in the tyre ...

The pressure of air in a tire is \(22.5Nm^{-2}\) at 27°C. If the air in the tyre heats up to 47°C, calculate the new pressure of the air, assuming that no air leaks out and that the change in volume of the air can be neglected.
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  • A \(21.10Nm^{-2}\)
  • B \(24Nm^{-2}\)
  • C \(39.07Nm^{-2}\)
  • D \(45Nm^{-2}\)
  • E \(97.25Nm^{-2}\)
Correct Answer: Option B
Explanation:
\(\frac{P_1}{T_1}=\frac{P_2}{T_2};P_2= \frac{22.5\times320K}{300K}=24Nm^{-2}\)

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