Answer:
170.59 kg.
Explanation:
Heat given out in one hour = 8700 x 10³ Cals
Let mass of water m gm
Heat taken up = mass x specific heat x rise in temperature
= m x 1 x ( 62 - 11 ) [ specific heat of water is 1 cal per g per k ]
51 m
Heat lost = heat gained
51 m = 8700 x 10³
m = 8700 / 51 x 10³
170.59 x 10³ g
170.59 kg.