If the temperature of a gas is increased, its volume is
a) reduced by half
b) reduced by one fourth
c) doubled
d) increased
Look up Charles' Law.
To find the answer to this question, you can refer to Charles' Law, which states that the volume of a gas is directly proportional to its temperature, assuming the pressure and amount of gas remain constant. According to Charles' Law, if the temperature of a gas is increased, its volume will also increase.
Therefore, the correct answer is d) increased.