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Chemistry
If ethanol dissolves in water then which of the following would happen?
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Q. If ethanol dissolves in water then which of the following would happen?
AIIMS
AIIMS 2010
A
Absorption of heat and contraction of volume
B
Liberation of heat and contraction of volume
C
Absorption of heat and increase in volume
D
Liberation of heat and increase in volume
Solution:
Ethanol $+ H _{2} O \longrightarrow $ A non-ideal solution, which shows positive deviation from Raoult's law, thus $\Delta H=+$ ve, ie, reaction is endothermic and $\Delta V=+$ ve, ie, volume rises.