Q)
(chatquestion)...6:13 PM
...0.0KB/s G9 ll D
Question
Cause of Positive Deviation:
Difference in extent of association in
two liquids (H20 & CH3OH)
• Association in one of the liquids
through H-bonding (C2H50H & C6H6)
• Greater difference in length of
hydrocarbon part of members of same
homologous series (n-butane & n-
heptane)
• Difference in polarity of liquids: General
Examples are when one is polar & Other
is non-polar (CCI4 & CHC13)
• Greater Difference in molar mass of
non-polar molecules (CCI4 & C6H6)
Negative deviations from Raoult's law:
Condition:
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