Question

4 kg of water at 90⁰C is added to 20kg of water at 25⁰C. what is the final temperature of mixture??​

Answer 1

Explanation:

let final temperature be T.

so,

Heat given by 4 kg water = Heat taken by 20Kg water.

mS ∆T = m' S ∆T'

4 S (90 - T ) = 20 S ( T - 25)

90 - T = 5T - 25×5

90 + 125 = 6T

T = 35.83°C

Answered by Gauthmath