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For the reaction A + B → C, if the enthalpy change ΔH is -150 kJ/mol, what can b
Practice Questions
Q1
For the reaction A + B → C, if the enthalpy change ΔH is -150 kJ/mol, what can be inferred about the reaction?
It is exothermic.
It is endothermic.
It is at equilibrium.
It requires energy input.
Questions & Step-by-Step Solutions
For the reaction A + B → C, if the enthalpy change ΔH is -150 kJ/mol, what can be inferred about the reaction?
Steps
Concepts
Step 1: Identify the reaction given: A + B → C.
Step 2: Look at the enthalpy change (ΔH) value provided, which is -150 kJ/mol.
Step 3: Understand what a negative ΔH means: it indicates that heat is released during the reaction.
Step 4: Conclude that since heat is released, the reaction is classified as exothermic.
Enthalpy Change
– Enthalpy change (ΔH) indicates whether a reaction absorbs or releases heat; a negative value signifies an exothermic reaction.
Exothermic Reactions
– Exothermic reactions release energy in the form of heat, resulting in a temperature increase in the surroundings.
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