2 KG of water at 352 K is mixed with 2 KG of water at 302 K. Kept in a container what is the resultant temperature of this mixture?
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heat gained by cold body =heat lost by hot body
Q=Heat energy
m=mass of water
c=Specific heat capacity
Heat lost
for convenience convert temp in Kelvin to celcius by subtracting by 273
t=final temp
t2=initial temp
Q1=mc(t2-t1)
=2 *4200*(79-t)
heat gained
t=final temp
t1= initial temp
Q2=mc(t-t1)
=2*4200(t-49)
Q1=Q2
2*4200(79-t)=2*4200(t-49)
79-t=t-49
2t=128
t=64
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