Navigate

At 0⁰C, 15 gm of ice melts to form water at 0⁰C. The change in entropy is

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.

UP2001
admin:

Related Questions

  1. A total charge of 5µC is distributed uniformly on the surface of the thin walled
  2. A simple pendulum has a time period T₁ when on the earth’s surface and T₂ When taken
  3. Which pair is isotonic?
  4. An object moving with a speed of 6.25 m/s, is deaccelerated at a rate given by
  5. A tuning fork of frequency 512 Hz makes 4 beats per second with the vibrating string