Q54.The heat of solution of anhydrous CuSO4 and CuSO4 ⋅5H2O are −70 kJ mol−1 and +12 kJ mol−1 respectively. The heat of hydration of CuSO4 to CuSO4 ⋅5H2O is −x kJ . The value of x is ______ (nearest integer).
What This Question Tests
Tests the application of Hess's Law to calculate the enthalpy of hydration by relating the heats of solution of anhydrous and hydrated salts.
Concepts Tested
Formulas Used
ΔH_hydration = ΔH_solution(anhydrous) - ΔH_solution(hydrated)
📚 NCERT Sections This Tests
5.14 — What Is The Coordination Entity Formed When Excess Of Aqueous Kcn Is
Chemistry Class 11 · Chapter 5
5.14 What is the coordination entity formed when excess of aqueous KCN is added to an aqueous solution of copper sulphate? Why is it that no precipitate of copper sulphide is obtained when H2S(g) is passed through this solution?
1.27 — If The Solubility Product Of Cus Is 6 × 10–16, Calculate The Maximum Molarity Of
Chemistry Class 11 · Chapter 1
1.27 If the solubility product of CuS is 6 × 10–16, calculate the maximum molarity of CuS in aqueous solution.
5.13 — Aqueous Copper Sulphate Solution (Blue In Colour) Gives:
Chemistry Class 11 · Chapter 5
5.13 Aqueous copper sulphate solution (blue in colour) gives: (i) a green precipitate with aqueous potassium fluoride and (ii) a bright green solution with aqueous potassium chloride. Explain these experimental results.
📋 Question Details
- Chapter
- Thermodynamics & Thermochemistry
- Topic
- Enthalpy of hydration
- Year
- 2024
- Shift
- 09 Apr Shift 1
- Q Number
- Q54
- Type
- Numerical
- NCERT Ref
- Class 11 Chemistry Ch 6: Thermodynamics
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