Question

The height of Niagara fall is 509m. Calculate the difference in temperature of water at top and bottom of the fall if J=4.25J/Cal and g=9.8ms^-2 and specific heat capacity of water is 4200J/Kg/K

Answer 1

$$mgh=mc\Delta T\\(9.8)(509)=(4250)\Delta T\\\Delta T=1.17\ K$$