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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: - Ice is wrapped in black and white cloth. In which cases more ice will melt
- A common emitter amplifier is designed with n-p-n transistor (α=0.99).
- In a laser tube, all the photons
- The mean distance between the atoms of iron is 3 x 10⁻¹⁰ m and interatomic force
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Topics: Thermodynamics
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Ice is wrapped in black and white cloth. In which cases more ice will melt
- A common emitter amplifier is designed with n-p-n transistor (α=0.99).
- In a laser tube, all the photons
- The mean distance between the atoms of iron is 3 x 10⁻¹⁰ m and interatomic force
- A polished metal plate has a rough and black-spot. It is heated to 1400 K
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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