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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
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A circular disc of radius R and thickness R/6 has moment of inertia I about an axis
- The height of the dam, in an hydroelectric power station is 10 m. In order to generate
- The specific charge of a proton is 9.6×10⁷ C/kg. The specific charge of an alpha particle
- If the number of radius of ²⁷Al is 3.6 Fermi, the approximate nuclear radius
- A body of mass 4 kg is accelerated upon by a constant force travels
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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