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Chemistry
Which of the following is not an endothermic reaction?
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Q. Which of the following is not an endothermic reaction?
Thermodynamics
A
Dehydrogenation
17%
B
Ethane to Ethene
10%
C
Combustion of propane
57%
D
Change of chlorine molecule into chlorine atoms
17%
Solution:
The enthalpy of combustion $(i.e., \Delta H)$ is always negative. So, combustion of propane is an exothermic reaction.