Q. The molal elevation constant (Kb) for water is 0.52°C/m. The boiling point of a solution containing 0.1 mole of a non-volatile, non-electrolyte solute in 1 kg of water would be:

पानी के लिए मोलल उन्नयन स्थिरांक (Kb) 0.52°C/m है। 1 किलो पानी में 0.1 मोल गैर-वाष्पशील, गैर-इलेक्ट्रोलाइट विलेय वाले घोल का क्वथनांक होगा:

100°C

100.052°C

100.52°C

99.48°C

Boiling point elevation:

Δ T_{b} = K_{b} \times m = 0.52 \times 0.1 = {0.052}^{\circ} C

Normal boiling point of water = 100°C

So, new boiling point = 100 + 0.052 = 100.052°C.

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