Hard Chemistry Chapter 01: Solutions Class 12 Level 5

कौन सा समूह केवल ऐसे सांद्रता मात्रक रखता है जो ताप परिवर्तन से सीधे प्रभावित नहीं होते?

Which group contains only concentration units that are not directly affected by temperature change?

Explanation opens after your attempt
Correct Answer

B. मोललता और मोल अंश / Molality and mole fraction

Step 1

Concept

Volume can change with temperature so volume based concentration units may change.

Step 2

Why this answer is correct

Molality depends on mass of solvent and mole fraction depends on ratio of moles.

Step 3

Exam Tip

Therefore molality and mole fraction are not directly temperature dependent. चरण 1: ताप के साथ आयतन बदल सकता है इसलिए आयतन आधारित मात्रक प्रभावित हो सकते हैं। चरण 2: मोललता द्रव्यमान पर और मोल अंश मोलों के अनुपात पर आधारित है। चरण 3: इसलिए मोललता और मोल अंश ताप से सीधे नहीं बदलते।

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The correct answer is B. मोललता और मोल अंश / Molality and mole fraction.

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