Problem: If an endothermic reaction absorbs heat, then why does it feel cold to the touch?

FREE Expert Solution

We’re being asked to explain why an endothermic reaction feels cold.


Recall that:

Exothermic reactions

lose energy, releases heat, temperature of the surroundings increases
▪ involves bond formation (for phase change: gas → liquid → solid)
ΔH is negative

Endothermic reactions

gain/requires energy, absorbs heat, temperature of the surroundings decreases
▪ involves breaking bonds (for phase change: solid → liquid → gas)
ΔH is positive


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Problem Details

If an endothermic reaction absorbs heat, then why does it feel cold to the touch?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Endothermic & Exothermic Reactions concept. You can view video lessons to learn Endothermic & Exothermic Reactions. Or if you need more Endothermic & Exothermic Reactions practice, you can also practice Endothermic & Exothermic Reactions practice problems.

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