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When 1 kg of ice at 0⁰C melts to water at 0⁰C, the resulting change in its entropy, taking latent heat of ice to be 80 cal/⁰C, is
Options
(a) 273 cal/K
(b) 8 x 104 cal/K
(c) 80 cal/K
(d) 293 cal/K
Correct Answer:
293 cal/K
Explanation:
Change in entropy is given by
dS = dQ / T or ∆S = ∆Q / T = mLf / 273
∆S = 1000 x 80 / 273 = 293cal / K
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Topics: Thermodynamics
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The input signal given to a CE amplifier having a voltage gain of 150 is
- The horizontal and vertical components of earth’s magnetic field at a place
- The moment of inertia of a uniform circular disc of radius R and mass M about an axis
- A block of wood weighs 10 N and is resting on an inclined plane. The coefficient
- A particle moves along the x-axis such that its co-ordinate (x) varies with time (t)
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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