Question

When 10 gm of water at 20°C is added to
5 gm of ice at 0°C, the resultant
temperature of the mixture is ​

Answer 1

Explanation:

Heat required to melt ice at −20

o

C into water at 0

o

C is

10×0.5×[0−(−20)]+10×80

=100+800=900cal

Heat released by water at 10

o

C =10×1(10−0)

=100cal

Because required heat is much more than that of released heat. So, final