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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 particle under the action of a constant force moves from rest upto 20 seconds
- Moment of inertia, along the diameter of a ring is
- An object is seen through a simple microscope of focal length 12 cm.
- For a given velocity, a projectile has the same range R for two angles of projection.
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Topics: Thermodynamics
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A particle under the action of a constant force moves from rest upto 20 seconds
- Moment of inertia, along the diameter of a ring is
- An object is seen through a simple microscope of focal length 12 cm.
- For a given velocity, a projectile has the same range R for two angles of projection.
- Two point objects of masses 1.5 g and 2.5 g respectively are at a distance of 16 cm
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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