First slide

Enthalpy of solution & dilution

Question

Which one of the following enthalpy change will have positive sign only

Easy

A

$∆_{solution} H$
B

$∆_{c} H$
C

$∆_{sub} H$
D

$∆_{hydration} H$

Solution

1- Formation of solution can be exothermic or endothermic
2- Combustion is always exothermic
3- Sublimation is always endothermic
4- Hydration of ions is always exothermic

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