Question

How much ice in grams would have to melt to lower the temperature of 356 mL of water from 35 ∘C to 0 ∘C ? (Assume that the density of water is 1.0 g/mL .)

Answer 1

Answer:

156.16 gm of ice

Explanation:

I will assume the ice starts at  0 C

As the ice melts, it produces water at  0 C  so we do not need to calculate THAT water being cooled....only the 356 ml being cooled to 0 C

356  gm *  4.186 j/gm-c  * (35 c)   = 52157.56 j

  this is the heat absorbed by the melting ice

x gm * 334 j / gm   = 52157.56 j           (334 j/gm is heat of fusion of water)

x = 156.16 gm of ice required