Multiple Choice

Benzene and naphthalene form an ideal solution at room temperature. For this process, the true statement(s) is(are):

A$$\Delta G$$ is positive
B$$\Delta S_{system}$$ is positive
Correct Answer
C$$\Delta S_{surroundings}=0$$
Correct Answer
D$$\Delta H=0$$
Correct Answer

Solution

When an ideal solution is formed process is spontaneous
According to Raoult's law, for an ideal solution
$$\Delta{H} = 0$$
$$\Delta{{V}_{mix}} = 0$$

Since there is no exchange of heat energy between system and surroundings
$$\Delta{{S}_{surroundings}} = 0$$
$$\Delta{{S}_{sys.}} = +ve$$

$$\therefore$$ From the relation
$$\Delta{G} = \Delta{H} – T\Delta{S}$$
$$\Delta{G} = -ve$$

Hence, the correct options are $$B$$, $$C$$ and $$D$$

SIMILAR QUESTIONS

Solutions

For an ideal solution of two components A and B, which of the following is true?

Solutions

Which of the following plot does not represent the behaviour of an ideal binary liquid solution of $$A$$ and $$B$$?

Solutions

An ideal binary solution is prepared by two liquids A and B, with p$$^o_A$$ > p$$^o_B$$. Then :

Solutions

For an ideal solution, the correct option is :

Solutions

Which one is not equal to zero for an ideal solution?

Solutions

The Poisson's ratio of a material is 0.4. If a force is applied to a wire of this material, there is a decrease of cross-sectional area by 2%. The percentage increase in its length is :

Solutions

What are the conditions for an ideal solution which obeys Raoult's law over the entire range of concentration?

Solutions

Formation of a solution from two components can be considered as: (i) Pure solvent $$\rightarrow$$ separated solvent molecules, $$\Delta H_1$$ (ii) Pure solvent $$\rightarrow$$ separated solute molecules, $$\Delta H_2$$ (ii) Separated solvent and solute molecules $$\rightarrow$$ solution, $$\Delta H_3$$ Solution so formed will be ideal if

Solutions

The composition of vapour when first bubble formed is:

Solutions

Which of the following is not correct for an ideal solution?

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