Question #23181
1 Answer
Explanation:
Ok, so I did a quick search and found the heat capacity for Cu.
The formula for thermal energy exchange is:
#Q_"released" + Q_"absorbed" = 0#
#(mcDeltaT)_ "released" + (mcDeltaT)_ "absorbed" = 0#
Where
#Q# is the quantity of heat#m# is the mass in kg,#c# is the specific heat capacity#DeltaT# is the change in temperature,#(T_2 - T_1)# .
Released is the Copper and the absorbed is the water.
#(mcDeltaT)_ "Cu" + (mcDeltaT)_ "water" = 0#
#0.02(380)(22-100) + m(4180)(22-20) = 0#
#-592.8 + 8360m = 0#
#8360m = 592.8 implies m = 0.071#
Since
#"0.071 kg " = " 70.1 g"#
you have
Hope this helps :)
