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Raoult's Law

why entropy c...

Question

why entropy change in solution showing negative deviation from raoult's law is positive. since volume is decreasing then entropy should also decrease.

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Q. A solution of

C H C l_{3} + C H_{3} C O C H_{3}

shows negative deviation from Raoults law.

Q. Assertion :A reaction will be spontaneous if

△

H is negative and

△

S is positive Reason:

△

G will be negative when there is a decrease in enthalpy and an increase in entropy

Q. Assertion :Entropy change in reversible adiabatic expansion of an ideal gas is zero. Reason: The increase in entropy due to volume increase just compensate the decrease in entropy due to fall in temperature.

Q. Assertion :Statement-I : Entropy change in reversible adiabatic expansion of an ideal gas is zero.
Because Reason: Statement-II : The increase in entropy due to volume increase just compensate the decrease in entropy
due to fall in temperature.

Q. Write two difference between a solution showing positive deviation and a solution showing negative deviation from Raoult's law.

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