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!

Answer 1

how many questions is this reveiw packet

Answer 2

i got access to the tools again!! :P

Answer 3

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

Answer 4

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

Answer 5

time the heat of fusion for iron

Answer 6

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

Answer 7

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

Answer 8

that's right!

Answer 9

ooh yay! thank you!!:D

Answer 10

:D