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JEE Main Chemistry question

ChemistrySolutionsJEE Main

The osmotic pressure of a urea solution at 10°C is 200 mm, becomes 105.3 mm when it is diluted and the temperature is raised to 25°C. The extent of dilution is times.

Answer: 2

Solution

Since the moles of urea are unchanged on dilution, (as ). With K, K:

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Question ID VK-143232