Which of the following is not an endothermic reaction?

Question

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

Tardigrade Admin · Accepted Answer

The enthalpy of combustion (i.e., Δ H) is always negative. So, combustion of propane is an exothermic reaction.

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

Dehydrogenation

Ethane to Ethene

Combustion of propane

Change of chlorine molecule into chlorine atoms

The enthalpy of combustion $(i . e ., Δ H)$ is always negative. So, combustion of propane is an exothermic reaction.

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

Dehydrogenation

Ethane to Ethene

Combustion of propane

Change of chlorine molecule into chlorine atoms

The enthalpy of combustion (i.e.,ΔH) is always negative. So, combustion of propane is an exothermic reaction.

The enthalpy of combustion $(i . e ., Δ H)$ is always negative. So, combustion of propane is an exothermic reaction.