Multiple Choice
Which term describes a chemical reaction that absorbs heat from its surroundings?
53
views
8. Thermochemistry
Endothermic & Exothermic Reactions
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following best describes what happens during an exothermic reaction?
A
The products have higher energy than the reactants.
B
No energy change occurs between the reactants and products.
C
Energy is released to the surroundings, usually in the form of heat.
D
Energy is absorbed from the surroundings, causing the temperature to decrease.
Verified step by step guidance1
Understand the definition of an exothermic reaction: it is a chemical reaction that releases energy to the surroundings.
Recall that energy changes during a reaction are related to the difference in energy between reactants and products.
In an exothermic reaction, the products have lower energy than the reactants because excess energy is released.
This released energy is often observed as heat, which increases the temperature of the surroundings.
Therefore, the best description is that energy is released to the surroundings, usually in the form of heat.
2:30mWatch next
Master Endothermic & Exothermic Reactions with a bite sized video explanation from Jules
Start learningRelated Videos
Related Practice
Endothermic & Exothermic Reactions practice set
Problem sets built by lead tutorsExpert video explanations