A tire has a pressure of 325 kPa at 10°C. If the temperature of the tire rises to 50°C and the volume remains constant, what is the new pressure? (Hint: °C 273 = K.)
According to the gas law, the relationship between the temperature and pressure is P1/T1=P2/T2. And the temperature is in the unit of K. So, P2=325*323/283=370.8 kPa.
