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If the melting point of ice is 0⁰C and latent heat of fusion is 5.46 kJ mol⁻¹, the entropy change for the conversion of 18 g of ice to water at one atmosphere is
Options
(a) 5.46 JK⁻¹
(b) 20 JK⁻¹
(c) 50 JK⁻¹
(d) 360 JK⁻¹
Correct Answer:
20 JK⁻¹
Explanation:
ΔS= ΔHf /T = 5.46 / 273 = 0.02 kJ K⁻¹ mol⁻¹ = 20 J K⁻¹ mol⁻¹.
Related Questions: - The number of d-electrons in Fe²⁺(Z=26) is not equal to the number of electrons
- Among the following the least thermally stable is
- When enthalpy and entropy change for a chemical reaction are – 2.5 x 10³ cals
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Topics: Thermodynamics
(179)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The number of d-electrons in Fe²⁺(Z=26) is not equal to the number of electrons
- Among the following the least thermally stable is
- When enthalpy and entropy change for a chemical reaction are – 2.5 x 10³ cals
- The oxidation number of As in H₂AsO₄⁻ is
- A no. of ionic compounds, e.g., AgCl, CaF₂, BaSO₄ are insoluable in water
Topics: Thermodynamics (179)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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