Question

1. a reaction that releases energy into its surroundings, causing the temperature of the mixture to increase, is classified as an:

isothermal reaction
exothermic reaction
endothermic reaction
endogonic reaction
clear all

Explanation:

To solve this, we analyze each option:

• Isothermal reaction: Temperature remains constant, so not this.
• Exothermic reaction: Releases energy (heat) into surroundings, increasing temperature. This matches.
• Endothermic reaction: Absorbs energy, decreasing temperature.
• Endogonic reaction: Requires energy input (not about heat release/absorption in this context).

Answer:

B. Exothermic reaction