Final answer:
The rate of a chemical reaction generally doubles with every 10°C increase in temperature, which means the reaction rate increases by 100% or doubles. The options provided do not match this general rule, so none are entirely accurate, though the closest incorrect choice is (a) Increases by 18%.
Step-by-step explanation:
In the context of chemical reactions, the rate of a reaction typically doubles with every 10°C increase in temperature. This is a chemistry concept often discussed in high school level courses and is relevant to reaction kinetics. If a reaction doubles in rate with a 10°C increase, then with every 10°C rise in temperature, the answer to the student's question will be that the reaction rate increases. For example, if the reaction proceeds at a certain speed at 25°C, then at 45°C, the rate would be four times faster because it doubles at 35°C and doubles again at 45°C.
Therefore, for the given options, the closest correct answer based on the typical behavior of chemical reactions to temperature changes would be (a) Increases by 100% for each 10°C increase, which means it doubles. However, since this option is not presented in the question, the most accurate response based on the provided choices and typical behavior of most chemical reactions would be (a) Increases by 18%, although this does not accurately reflect the general rule of doubling.