BPSC Prelims

2024

General

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General Science

Chemistry

EN हिंदी

✕

BPSC Prelims 2024 General 📅 04 Jan, 2025

For two liquids A and B to form an ideal solution

A

Enthalpy of mixing should be zero

B

Entropy of mixing must be zero

C

Free energy of mixing should be zero

D

None of the above

Result Summary

APEDIA

BPSC Prelims

2024 • 04 Jan, 2025 • General

For two liquids A and B to form an ideal solution

Correct Answer

Enthalpy of mixing should be zero

• **Condition 1:** For an ideal solution (Raoult's Law), the Change in Enthalpy of mixing ($\Delta H_{mix}$) must be zero. • **Condition 2:** The Change in......

💡 Analysis & Explanation

• **Condition 1 ▼

** For an ideal solution (Raoult's Law), the Change in Enthalpy of mixing ($\Delta H_{mix}$) must be zero.

• **Condition 2 ▼

** The Change in Volume of mixing ($\Delta V_{mix}$) must be zero.

• **Note ▼

** Entropy ($\Delta S$) is always positive for mixing, and Free Energy ($\Delta G$) is negative (spontaneous).