Endothermic Reactions

An endothermic reaction is a chemical reaction that absorbs heat from its surroundings. This means that the energy of the reactants is lower than the energy of the products. In simpler terms, in an endothermic reaction, heat is taken in from the surroundings, causing the surroundings to feel cooler.

Characteristics of Endothermic Reactions

• Temperature decreases during the reaction
• Energy is absorbed from the surroundings
• Common examples include melting ice, evaporating water, and baking bread

Examples of Endothermic Reactions

Here are some common examples of endothermic reactions:

1. Melting ice: When ice melts, it absorbs heat from its surroundings, causing the surroundings to feel cooler.
2. Evaporating water: The process of water evaporating also absorbs heat from the surroundings, resulting in a cooling effect.
3. Baking bread: The process of baking bread is an endothermic reaction as it absorbs heat from the oven.

Study Guide

Here are some key points to remember about endothermic reactions:

1. Endothermic reactions absorb heat from their surroundings.
2. The temperature decreases during an endothermic reaction.
3. Common examples of endothermic reactions include melting ice, evaporating water, and baking bread.

It's important to understand the concept of endothermic reactions and be able to identify examples of such reactions in everyday life. Practice recognizing the characteristics of endothermic reactions and how they differ from exothermic reactions.