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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: - A carnot’s engine operates with source at 127° C and sink at 27°C
- A particle of mass 1 mg has the same wavelength as an electron moving with a velocity
- Energy bands in solids are a consequence of
- A uniform rod of length l is placed with one end in contact with the horizontal
- A solid cylinder of mass 50kg and radius 0.5 m is, free to rotate about the horizontal axis
Topics: Thermodynamics
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A carnot’s engine operates with source at 127° C and sink at 27°C
- A particle of mass 1 mg has the same wavelength as an electron moving with a velocity
- Energy bands in solids are a consequence of
- A uniform rod of length l is placed with one end in contact with the horizontal
- A solid cylinder of mass 50kg and radius 0.5 m is, free to rotate about the horizontal axis
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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