What is the change in enthalpy for an endothermic reaction?
Practice Questions
Q1
What is the change in enthalpy for an endothermic reaction?
Negative
Positive
Zero
Undefined
Questions & Step-by-Step Solutions
What is the change in enthalpy for an endothermic reaction?
Correct Answer: Positive change in enthalpy
Step 1: Understand what an endothermic reaction is. It is a type of chemical reaction that absorbs heat from its surroundings.
Step 2: Recognize that when heat is absorbed, the energy of the system increases.
Step 3: Know that enthalpy is a measure of the total energy of a system, including internal energy and the energy required to make room for it in the surroundings.
Step 4: Since the reaction absorbs heat, the change in enthalpy (ΔH) is positive.
Step 5: Conclude that for an endothermic reaction, the change in enthalpy is positive, indicating that energy is taken in.
