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

Combustion of propane is an exothermic reaction because the enthalpy of combustion (ie, Δ H ) is always negative.

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

Dehydrogenation

Ethane to ethene

Combustion of propane

Change of chlorine molecule into chlorine atoms

Combustion of propane is an exothermic reaction because the enthalpy of combustion (ie, $Δ H$ ) is always negative.

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

Dehydrogenation

Ethane to ethene

Combustion of propane

Change of chlorine molecule into chlorine atoms

Combustion of propane is an exothermic reaction because the enthalpy of combustion (ie, ΔH ) is always negative.

Combustion of propane is an exothermic reaction because the enthalpy of combustion (ie, $Δ H$ ) is always negative.