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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.
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Topics: Thermodynamics
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The flux linked with a circuit is given by φ=t³+3t-7. The graph between time
- A charge Q is enclosed by a Gaussian spherical surface of radius R
- Three capacitors each of capacity 4 μF are to be connected in such a way that the effective
- A bomb of mass 16 kg at rest explodes into two pieces of masses of 4 kg and 12 kg.
- A particle moves in a straight line with a constant acceleration
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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