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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: - The number of photo electrons emitted for light of a frequency v
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Topics: Thermodynamics
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The number of photo electrons emitted for light of a frequency v
- The drift velocity of free electrons in a conductor is v, when a current
- Figure below shows two paths that may be taken by a gas to go from a state A
- A beam of light of wavelength 590 nm is focussed by a converging lens of diameter
- An LCR circuit contains resistance of 100 ohm and a supply of 200 volt at 300 radian
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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