When 1 kg of ice at 0⁰C melts to water at 0⁰C, the resulting change in its entropy

⇦

⇨

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

Related Questions:

1. Following figures show the arrangement of bar magnets in different configurations
2. During an adiabatic process, the cube of the pressure is found to be inversely
3. A gas is suddenly expanded such that its final volume becomes 3 times
4. The energy of the em waves is of the order of 15 keV. To which part of the spectrum
5. If X=3YZ², find dimensions of Y if X and Z are the dimensions of capacity

Topics: Thermodynamics (179)
Subject: Physics (2479)

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends