Question

The height of Niagra falls is 50 m. If
J = 4.2 J/cal, the difference in
temperature of water at top level and at
the bottom level of fall will be :
(1) 0.117°C (2) 0.49°C
(3) 0.82°C (4) 2.05°C​

Answer 1

Answer:

0.117°C

Explanation:

Calculate the difference in temperature of water at the top and at the bottom of fall, if J=4.2Jcal-1. specific heat of water, s=1000calkg-1. ∘C-1. θ=9.8×501000×4.2=0.117∘C