In a chemical reaction, if ΔH is negative, the reaction is classified as:

Practice Questions

Q1
In a chemical reaction, if ΔH is negative, the reaction is classified as:
  1. Endothermic
  2. Exothermic
  3. Isothermal
  4. Adiabatic

Questions & Step-by-Step Solutions

In a chemical reaction, if ΔH is negative, the reaction is classified as:
  • Step 1: Understand what ΔH means. ΔH represents the change in enthalpy, which is a measure of heat content in a chemical reaction.
  • Step 2: Identify the sign of ΔH. If ΔH is negative, it means that the reaction is losing heat.
  • Step 3: Recognize what it means to lose heat in a reaction. When a reaction loses heat, it means that it is releasing energy into the surroundings.
  • Step 4: Classify the reaction based on the heat change. A reaction that releases heat is called an exothermic reaction.
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