Which of the following is not an endothermic reaction?

Question

Which of the following is not an endothermic reaction? (A) Combustion of propane (B) Ethane to ethene (C) Dehydrogenation (D) Change of chlorine molecule into chlorine atoms

Tardigrade Admin · Accepted Answer

The enthalpy of combustion, i.e., Δ H is always negative. It means combustion is an exothermic reaction.

Q. Which of the following is not an endothermic reaction?

Combustion of propane

Ethane to ethene

Dehydrogenation

Change of chlorine molecule into chlorine atoms

The enthalpy of combustion, i.e., $Δ H$ is always negative. It means combustion is an exothermic reaction.

Q. Which of the following is not an endothermic reaction?

Combustion of propane

Ethane to ethene

Dehydrogenation

Change of chlorine molecule into chlorine atoms

The enthalpy of combustion, i.e., ΔH is always negative. It means combustion is an exothermic reaction.

The enthalpy of combustion, i.e., $Δ H$ is always negative. It means combustion is an exothermic reaction.