Question

What amount of energy in joules needs to be added to a 1000 g iron skillet to raise its temperature from 25°C to 250°C? Given the specific heat of iron as 0.449 J/g°C, which option below correctly indicates the required energy?

A) 449 J
B) 112,250 J
C) 50,000 J
D) 101,025 J

Answer 1

The amount of energy in joules needed to raise the temperature of the iron skillet is 112,250 J.

Step-by-step explanation:

To calculate the amount of energy, we can use the formula:

Q = mcΔT

Where Q is the energy, m is the mass of the skillet, c is the specific heat capacity of iron, and ΔT is the change in temperature. Substituting the given values, we have:

Q = (1000 g)(0.449 J/g°C)(250°C-25°C)

Q = 112,250 J