NiFinal answer:
According to Charles's law, the volume of a gas is directly proportional to its temperature, assuming constant pressure and amount of gas.
Step-by-step explanation:
According to Charles's law, the volume of a gas is directly proportional to its temperature, assuming constant pressure and amount of gas.
In this case, the gas volume increases from 150 mL to 300 mL, which is a doubling of volume. Therefore, the temperature must also double. The initial temperature is 20.0°C, so the final temperature will be 40.0°C.