MCQ
Liquids $ A$  and $B$ form an ideal solution
  • The enthalpy of mixing is zero
  • B
    The entropy of mixing is zero
  • C
    The free energy of mixing is zero
  • D
    The free energy as well as the entropy of mixing are each zero

Answer

Correct option: A.
The enthalpy of mixing is zero
a
For an ideal solution, we know that:-

$a) V _{\text {mix }}=0$

$b) H _{\text {mix }}=0$

$c) \Delta G _{\text {mix }}=-v e$

Final Answer : Hence, option $A$ is correct.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Statement $I :$ Acid strength increases in the order given as $\mathrm{HF}<\mathrm{HCl}<<\mathrm{HBr}<<\mathrm{HI}$

Statement $II :$ As the size of the elements $\mathrm{F}, \mathrm{Cl}, \mathrm{Br}, \mathrm{I}$ increases down the group, the bond strength of $\mathrm{HF}$, HCl, HBr and HI decreases and so the acid strength increases.

In the light of the above statements, choose the correct answer from the options given below.

Which of the following is/are aromatic
The oxidation state of chromium in the final product formed by the reaction between $KI$  and acidified potassium dichromate solution is
Given below are two statements I and II.
Statement I : Dumas method is used for estimation of "Nitrogen" in an organic compound.
Statement II : Dumas method involves the formation of ammonium sulphate by heating the organic compound with conc $\mathrm{H}_{2} \mathrm{SO}_{4}$.
In the light of the above statements, choose the correct answer from the options given below
The standard electrode potential of the half cells are given below

$Z{n^{2 + }} + 2{e^ - } \to Zn$ ;          $E = - 7.62\,\,V,$

$F{e^{2 + }} + 2{e^ - } \to Fe$ ;          $E = - 7.81\,\,V$

The emf of the cell $F{e^{2 + }} + Zn \to Z{n^{2 + }} + Fe$ is ............ $\mathrm{V}$

The element having the highest first ionization enthalpy is
Among the following elements, the one having the highest ionisation energy is :-
The treatment of an ester with $LiAlH_4$ followed by acid hydrolysis produces :
The activation energy of one of the reactions in a biochemical process is $532611\, J\,  mol ^{-1}$. When the temperature falls from $310 \, K$ to $300\,  K$, the change in rate constant observed is $k _{300}= x \times 10^{-3}\,  k _{310}$. The value of $x$ is $.....$ [Given: $\ln 10=2.3$

$R =8.3\,  J \, K ^{-1}\,  mol ^{-1}$

The number of endothermic process/es from the following is

$A.$ $I _2( g ) \rightarrow 2 I ( g )$

$B.$ $HCl ( g ) \rightarrow H ( g )+ Cl ( g )$

$C.$ $H _2 O ( l ) \rightarrow H _2 O ( g )$

$D.$ $C ( s )+ O _2( g ) \rightarrow CO _2( g )$

$E.$ Dissolution of ammonium chloride in water