During a lab activity, students prepared two solutions separately at the same temperature. Later they mixed the solutions and the temperature dropped. Why?

A:there was no energy input during the chemical reaction

B:energy was absorbed during the chemical reaction

C:energy was released during the chemical reaction

Question

Chemistry

Owen Hunter

14 September, 19:13

During a lab activity, students prepared two solutions separately at the same temperature. Later they mixed the solutions and the temperature dropped. Why?

A:there was no energy input during the chemical reaction

B:energy was absorbed during the chemical reaction

C:energy was released during the chemical reaction

+3

Answers (2)

Know the Answer?

Ernie · Answer 1

Reactions usually only happen spontaneously if they are exothermic. Therefore the best answer is:

C:energy was released during the chemical reaction

Melina Thornton · Answer 2

I think it's B because the individual properties had their own temperature and when the were mixed they observed ones temperature and cold down by sharing the same properties