Question

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There is 50 g of ${H}_{2}O$ At room tempertlature.

A scientist draws 40 KJ of heat by cooling water. What should be the temperature of ice formed?

Answer 1

heat = ms × change in temperature

40000 = 1/20 . 4186. (297-T)
40000= 2093( 297-T)
19.11 = 297-T
T= 277.89 KELVIN
= 4.89 DEGREE CELSIUS

Answer 2

Answer:

4.38 degree i think is answer