Question

B. The chef put a 523 g aluminum cookie sheet into an oven to heat. The cookie

sheet started out at 25°C (room temperature) and was heated to 177°C. How
much energy did the oven supply to heat the cookie sheet? (2 points)

Answer 1

70,751 J

Step-by-step explanation:

To find the energy of the aluminum cookie sheet, you need to use the following equation:

Q = mcΔT

In this equation,

-----> Q = energy (J)

-----> m = mass (g)

-----> c = specific heat (J/g°C)

-----> ΔT = change in temperature (°C)

The specific heat of aluminum is 0.89 J/g°C. You can plug the given values into the equation and solve for "Q".

Q = ? J c = 0.89 J/g°C

m = 523 g ΔT = 177°C - 25°C = 152°C

Q = mcΔT <----- Specific Heat Equation

Q = (523 g)(0.89 J/g°C)(152°C) <----- Insert values

Q = 70,751 <----- Multiply values