how much heat is given off by 1000 kg of iron when it solidifies at its melting point?

A. 2.66 * 10^2 J
B. 3.76 * 10^-3 J
C. 2.66 * 10^7 J
D. 2.66 * 10^8 J

** i will draw a table!

Question

how much heat is given off by 1000 kg of iron when it solidifies at its melting point?

A. 2.66 * 10^2 J 
B. 3.76 * 10^-3 J
C. 2.66 * 10^7 J
D. 2.66 * 10^8 J

** i will draw a table!

anonymous · Answer

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yadu123 · Answer

how many questions is this reveiw packet

anonymous · Answer

i got access to the tools again!! :P

michele_laino · Answer

here we have to compute this:
(heat of fusion of iron) times (mass of iron)

anonymous · Answer

okay so 1000 times _____ ? not sure what to multiply it by :/

yadu123 · Answer

time the heat of fusion for iron

michele_laino · Answer

$${10^3} \times 2.66 \times {10^5} = ...Joules$$

anonymous · Answer

oh okie! so we get this?
266000000? so our solution is choice D?

michele_laino · Answer

that's right!

anonymous · Answer

ooh yay! thank you!!:D

michele_laino · Answer

:D