One kg water at velocity 12.5 m/s and 30oC enters a 2.54 cm diameter horizontal pipe where

there is no heat or work exchange with the surroundings. The water suddenly flows through a

larger pipe with a diameter of 3.85cm. Calculate the following:

a. Velocity of the water leaving the pipe in m/s

b. The change in temperature of the water. Cpwater=4.18 𝐾𝐽/

𝐾𝑔.𝐾