TS EAMCET · Chemistry · Thermodynamics (C)

$A$ and $B$ on mixing form an ideal solution at room temperature. Which of the following options is correct for this process?

A

$ΔG$ $ΔS$
System $ΔS$
Surroundings $ΔH$

$-$ $+$ $+$ $+$
B

$ΔG$ $ΔS$
System $ΔS$
Surroundings $ΔH$

$+$ $+$ $0$ $+$
C

$ΔG$ $ΔS$
System $ΔS$
Surroundings $ΔH$

$-$ $+$ $0$ $0$
D

$ΔG$ $ΔS$
System $ΔS$
Surroundings $ΔH$

$-$ $-$ $+$ $+$

Verified Solution

Answer & Solution

Correct Answer

(C)

$ΔG$	$ΔS$ System	$ΔS$ Surroundings	$ΔH$
$-$	$+$	$0$	$0$

Step-by-step Solution

Detailed explanation

When the ideal solution is formed then the process is the spontaneous. According to the Raoult's law for an ideal solution ∆H = 0∆Vmix = 0 Since there is no exchange of heat energy between system and surrounding. Therefore,…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Explore more questions on app

From TS EAMCET

Explore more questions on app

A and B on mixing form an ideal solution at room temperature. Which of the following options is correct for this process?

Step-by-step Solution

$A$ and $B$ on mixing form an ideal solution at room temperature. Which of the following options is correct for this process?