Problem: Water being turned into ice cubes in a freezer is an example of ___________ (endothermic or exothermic) process, and ∆H will be ___________. (positive or negative)?

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Water being turned into ice cubes in a freezer is an example of ___________ (endothermic or exothermic) process, and ∆H will be ___________. (positive or negative)


Recall that:

• Exothermic reactions

▪ lose energy, releases heat, temperature of the surroundings increases
▪ ΔH is negative

• Endothermic reactions

▪ gain/requires energy, absorbs heat, temperature of the surroundings decreases
▪ ΔH is positive


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Water being turned into ice cubes in a freezer is an example of ___________ (endothermic or exothermic) process, and ∆H will be ___________. (positive or negative)?

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