Question

If 100ml of water at 60°C is added to 200ml of water at 30°C then the temperature in mixture is..

Answer 1

Answer:

40°C

Explanation:

Heat lost = Heat gained

Let x be the final temperature of the mixture.

(100)(60 - x)(4.184)=(200)(x - 30)(4.184)

Solve for x

Temp in mixture =M1t1+m2t2/m1+m2

100*60+200*30/100+200=

6000+6000 /300=

12000/300=

40

Hence,40 is the temperature in mixture.

Hope this helps you.