Answers

2015-04-24T00:14:32+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
     Mixtures:

Let the amount of copper be M1 grams.         Temperature T1 = 60°C
amount of Water M2 = 1 litre = 1000 grams        temperature T2 = 27°C

Resultant temperature of the mixture = T = 40°C
T = \frac{M1 T1 + M2 T2 }{M1 + M2}\\\\.\ \ 40 =\frac{M1*60+1000*27}{M1+1000}\\\\40\ M1+40,000=60\ M1+27,000\\\\M1=650\ gms=0.65\ kg

2 5 2
click on thanks (blue) button above. pls
SIR I WILL DO IT ,,ONLY FOR YOU,,,MY LORD.