Before starting a journey, the tyre pressure of a car was 3 x 105Nm-2 at...

JAMB 1997

Before starting a journey, the tyre pressure of a car was 3 x 10⁵Nm^-2 at 27^oC. At the end of the journey, the pressure rose to 4 x 10⁵Nm^-2. Calculate the temperature of the tyre after the journey, assuming the volume is constant

A. 400^oC
B. 300^oC
C. 273^oC
D. 127^oC

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Correct Answer: Option D

Explanation

\(\frac{P_1}{T_1}\) = \(\frac{ P_2}{T_2}\)

\(\frac{3 \times\ 10^6}{27 + 273}\) = \(\frac{4 \times\ 10^6}{0 + 273}\)

\(\theta\) = 127^oC

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Before starting a journey, the tyre pressure of a car was 3 x 105Nm-2 at...

Correct Answer: Option D

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