40g Of Ice At 0в°C Is Used To Bring Down Temperature Of Certain Mass Of Water At 60в°C To 10в°C

40g of ice at 0°C is used to bring down the temperature of a certain mass of water at 60°C to 10°C. Find … of fusion of ice = 336…

Answers:

Let mass of water used = m gm.

By principle of calorimetry,

Heat given = Heat taken

m₁c₁ΔQ₁ = mL + m₂c₂ΔQ₂

m x 4.2 x (60 – 10) = 40 x 336 + 40 x 4.2 x (10 – 0)

m x 4.2 x 50 = 40 x 336 + 1680

m = 72 gm