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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
- An object is 8 cm high. It is desired to form a real image 4 cm high at 60 cm from
- Light of wavelength λ from a point source falls on a small circular obstacle
- A cylindrical capacitors has charge Q and length L. If both the charge and length
- Three capacitors each of capacity 4 μF are to be connected in such a way that the effective
- A condenser of 250 μF is connected in parallel to a coil of inductance of 0.16 mH
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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