Worksheet on Henry’s Law and Raoult’s Law

 

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Worksheet on Henry’s Law and Raoult’s Law

Chapter: Solutions (Class 12, NCERT)

Q1. Henry’s Law Conceptual Question

Explain Henry’s law and write its mathematical expression. How does the solubility of a gas in a liquid change with:
a) Increase in pressure?
b) Increase in temperature?

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Q2. Numerical on Henry’s Law

The Henry’s law constant for CO₂ in water at 25°C is 3.3 × 10⁴ kPa. Calculate the solubility of CO₂ in water at 25°C if the partial pressure of CO₂ over the solution is 2 atm.
(Given: 1 atm = 101.3 kPa)

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Q3. Raoult’s Law Conceptual Question

State Raoult’s law and derive its mathematical expression for a binary liquid solution. How does Raoult’s law explain the concept of ideal and non-ideal solutions?

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Q4. Numerical on Raoult’s Law

A solution is prepared by dissolving 10 g of urea (Molar mass = 60 g/mol) in 100 g of water. Calculate the vapor pressure of water in the solution at 25°C.
(Given: Vapor pressure of pure water at 25°C = 23.8 mmHg)

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Q5. Application-Based Question

Both Henry’s law and Raoult’s law describe the behavior of gases and liquids in solutions. Explain how these laws apply in the following real-life scenarios:
a) Carbonated soft drinks
b) Deep-sea diving
c) Boiling of water at high altitudes

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This worksheet covers both conceptual and numerical aspects, ensuring a solid understanding of Henry’s and Raoult’s laws. Let me know if you need solutions as well!

For Solutions: CLICK HERE