- #1
Jennifer001
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Homework Statement
a 4kg iron hammer is initally 700 degree celcius is droppped into a bucket containing 20kg of water at 25degree celcius. what is the final temperture
Homework Equations
q=mc(delta)T
The Attempt at a Solution
m1=4kg
m2=20kg
T1=700=973K
T2=25=298
i know the system is in equilibrium but i don't know how to solve it correctly.. so here's my shot at it
Q=mc(delta)T
=(4)(449J/kgK)(Tf-973)=(20)(4190J/kgK)(Tf-298)
i think I'm doing this question wrong because .. when i solve for Tf i get a negative number of -288.66K
help?