Answer: 177600 J or 177.6kJ
Explanation:
For this problem, we need to use q = mcAT
we have m = 10000, and AT= 40. The specific heat of iron is 0.444.
So now we can plug it in: q = 10000*.444*40 = 177600 J or 177.6kJ
Answer:
1848000J
Explanation:
Given parameters:
Mass of iron = 100kg
Temperature change = 40°C
Unknown:
Energy needed to increase the temperature = ?
Solution:
The amount of energy needed is given by the expression below:
H = m C Δt
m is the mass
c is the specific heat capacity
Δt is the change in temperature
c for iron is 462J/kg°C
Now insert the parameters and solve;
H = 100 x 462 x 40 = 1848000J
