Question

30 gms of water at 30°C is in a beaker. Which
of the following, when added to water, will
have greatest cooling effect? (Specific heat of
copper = 0.1 cal/gm°C)
U 100 gms of water at 10°C
2) 15 gms of water at 0°C
3) 3 gms of ice at 0°C
4) 18 gms of copper at 0°C​

Answer 1

Answer:

the answer for this question is(4)

Answer 2

Answer:

the answer for this question is (1) . it will help u