Q 11-12-061JEE MainJEE Main 2023 (29 Jan, Shift 1)Easy
A bicycle tyre is filled with air having pressure of $270\ \text{kPa}$ at $27^\circ\text{C}$. The approximate pressure of the air in the tyre when the temperature increases to $36^\circ\text{C}$ is
Answer: (C) $278\ \text{kPa}$
At constant volume $P\propto T$:
$$P_2=270\times\frac{309}{300}=278.1\ \text{kPa}\approx278\ \text{kPa}$$
Solution by Sreeraj P, M.Sc Physics