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. Water rises to a height h in a capillary at the surface of earth. On the surface
  2. A planar coil having 12 turns carries 15 A current. The coil is oriented with respect
  3. The maximum and minimum magnitudes of the resultant of two vectors
  4. A filament bulb (500W,100V) is to be used in a 230V main supply. When a resistance
  5. If the volume of a block of aluminium is decreased by 1%, the pressure