Question

The recipe for Bananas Foster requires 35g of ethanol to be added to the pan. The ethanol starts at room temperature (25°C) and is heated to its boiling point of 78°C. How many Joules of energy are transferred from the stove burner to the ethanol to create this temperature change? Your answer should have the correct number of significant figures. Show all work.

Given: The specific heat of ethanol is 2.46 J/g°C.

Answer 1

To calculate the amount of heat released we have equation, use the equation Q = mc ΔT,

where

m= 35g

c= 2.46 J/g°C

ΔT=T2-T1 = 78-25= 53°C

now Q = mcΔT

Q = 35×2.46×53

Q = 4563.3 joule

Conclusion 4563.3 Joules of energy are transferred from the stove burner to the ethanol to create this temperature change!