Question #d4bcc

1 Answer
Apr 22, 2014

The thermochemistry base equation is Q=mCpT where
Q = Heat in Joules
m = mass of the material
Cp = specific heat capacity
T = change in Temperature TfTi

For this equation the metal is going to lose heat make Q negative while the water is going to gain heat making Q positive

Due to the Law of Conservation of Energy the heat lost by the metal will be equal to the heat gained by the water.

QPb=+Qwater

specific heat of lead is 0.130 j/gC
specific heat of water is 4.18 j/gC

[800g(100900C)(.130JgC)]=1500g(100TiC)(4.18JgC)
83,200=62,7006,270Ti
20,500=6270Ti
3.29C=Ti

Change in temp for the water is 100(3.29)C=103.29C

I hope this was helpful.
SMARTERTEACHER