Final answer:
To find the final temperature, use the reciprocal form of Charles's law to relate the initial and final temperatures and volumes of a gas.
Step-by-step explanation:
In order to find the final temperature, we can use the reciprocal form of Charles's law, which relates the initial and final temperatures and volumes of a gas. The equation is T1/V1 = T2/V2, where T1 and V1 are the initial temperature and volume, and T2 and V2 are the final temperature and volume. By rearranging the equation, we can solve for the final temperature:
T2 = (T1 * V2) / V1
Example: If the initial temperature is 20°C, the initial volume is 2 liters, and the final volume is 3 liters, we can substitute these values into the equation to find the final temperature:
T2 = (20 * 3) / 2 = 30°C