Question

1. Water initially at 20°C at a height of 1.68 km
above the ground, falls down on ground. Taking
the specific heat capacity of water to be
4200 J kg-1 K-1, find the final temperature of
water on reaching the ground. Take g = 10 m s2.
​

Answer 1

Explanation:

Answer. When water falls from a height, its potential energy is converted to heat energy. Hence, temperature difference between water at top & that at bottom is 0.4667 ℃.

Answer 2

hogaya ....snap pei aao yaha question katam hojayega