00:01
Hi, here in this given problem, mass of the water which has been kept in refrigerator, that is m, is equal to 1 .5 kg.
00:16
It was initially at the temperature t1 is equal to 20 degree celsius.
00:23
And finally, it has to be converted into ice whose temperature is minus 12 degree celsius.
00:30
So, heat energy which must be removed out of the water, it will be given by, first of all, the water of 20 degree celsius will be converted into water of 0 degree celsius, for which the heat will be given by the expression m multiplied by cw.
00:49
Cw is the specific heat capacity of water and change of temperature t1 minus 0.
00:56
Then 0 degree celsius water will be converted into 0 degree celsius ice.
01:04
So the expression is m into li...