Answer :
Final answer:
A reaction rate doubles for every 10 °C temperature increase; thus, a reaction proceeds four times faster at 45 °C and 128 times faster at 95 °C compared to 25 °C. NaClO3 decomposition would take 12 minutes at a temperature 20 °C higher than the original setup.
Explanation:
The rate of a chemical reaction depends on the temperature at which it is carried out. In the context of the provided problem, the reaction rate doubles for every 10 °C rise in temperature. Specifically:
- (a) At 45 °C the reaction would proceed twice as fast as at 35 °C, which in turn is twice as fast as at 25 °C, so the reaction at 45 °C proceeds four times faster than at 25 °C.
- (b) At 95 °C, which is 70 °C higher than 25 °C, the reaction rate doubles 7 times (since 70/10 = 7), so the reaction at 95 °C proceeds 128 times faster than at 25 °C.
Concerning the experiment with NaClO3 decomposition, if the sample temperature was increased by 20 °C, the rate would double twice. Thus, the decomposition that originally took 48 minutes would take 12 minutes at the higher temperature.
