⇦ | ⇨ |
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.
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Topics: Thermodynamics
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The difference in the variation of resistance with temperature in a metal
- A proton of mass m and charge q is moving in a plane with kinetic energy E. If there exists
- The mean free path of molecules of a gas,(radius ‘r’) is inversely proportional to
- An ideal gas expands in such a manner that its pressure and volume can be related
- A mass m moves in a circle on a smooth horizontal plane with velocity v₀
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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