How much energy would it take to melt 1 aluminum soda can if the can starts out at 20°C, melts at 660°C, and has a mass of 14 g?

1 Answer
Oct 4, 2017

Answer:

8,100 J

Explanation:

#q=mcDeltaT#

#T_i=20#°C
#T_f=660#°C
#DeltaT=T_f-T_i=660#°C#-20#°C#=640#°C#=640#K
#m=14#g
#c=0.900#J/g*K

(Since no specific heat capacity is provided, we can assume that the can is pure Aluminum and look up the specific heat capacity of Aluminum.)

#q=(14#g#)(0.900#J/g*K#)(640#K#)=8,100#J