In a reaction where the enthalpy change is positive, what can be inferred about

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Question: In a reaction where the enthalpy change is positive, what can be inferred about the reaction?

Options:

Correct Answer: It is endothermic.

Solution:

A positive enthalpy change indicates that the reaction is endothermic, meaning it absorbs heat from the surroundings.

In a reaction where the enthalpy change is positive, what can be inferred about the reaction?

In a reaction where the enthalpy change is positive, what can be inferred about the reaction?

Step 1: Understand what enthalpy change means. Enthalpy change is the heat content change during a reaction.
Step 2: Identify the sign of the enthalpy change. A positive enthalpy change means that the value is greater than zero.
Step 3: Recognize what a positive enthalpy change indicates. It suggests that the reaction requires heat to occur.
Step 4: Conclude that the reaction is endothermic. This means the reaction absorbs heat from its surroundings.

Enthalpy Change – A measure of the heat content of a system; a positive change indicates heat absorption.
Endothermic Reactions – Reactions that absorb heat from the surroundings, resulting in a positive enthalpy change.