Final answer:
To solve the problem, where only temperature and pressure change while the volume remains constant, Gay-Lussac's Law is used, which expresses the direct proportionality between the pressure and temperature of a gas at constant volume.
Step-by-step explanation:
To solve the given problem, which involves a change in temperature and pressure of a gas while keeping the volume constant, you would use Gay-Lussac's Law. This law states that for a given mass of gas at constant volume, the pressure is directly proportional to its absolute temperature (measured in Kelvins). Therefore, if the temperature increases or decreases, so does the pressure.
In this scenario, as only the temperature and pressure are changing, and the volume is not mentioned as being changed, Gay-Lussac's Law is applicable. The formula from Gay-Lussac's Law can be written as P1/T1 = P2/T2, where P1 is the initial pressure, T1 is the initial temperature, P2 is the final pressure, and T2 is the final temperature.