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At 0⁰C, 15 gm of ice melts to form water at 0⁰C. The change in entropy is
Options
(a) zero
(b) 18.5
(c) 15
(d) None of these
Correct Answer:
18.5
Explanation:
Heat absorbed = mL cal. = mL J joule
Change of entropy ∆S = Heat/Temperature
∆S = mLJ / Temperature = (15×80×4.2) / 273
∆S = 18.46 J/K.
Related Questions: - In a uniform circular motion, work done in one complete rotation is
- The electric potential at a point (x,y,z) is given by V = – x²y – xz³ + 4.
- A certain number of spherical dropes of a liquid of radius r coalesce to form a single
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Topics: Thermodynamics
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In a uniform circular motion, work done in one complete rotation is
- The electric potential at a point (x,y,z) is given by V = – x²y – xz³ + 4.
- A certain number of spherical dropes of a liquid of radius r coalesce to form a single
- A 50 ohm galvanometer gets full scale deflection when a current of 0.01 A passes
- A bucket full of water is revolved in a vertical circle of 2m
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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