The ceramic coffee cup of 116g in Figure 16

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The ceramic coffee cup of 116g in Figure 1616,
with c1090J/kg.K and is initially at room
temperature (24.0 C). If 225 g of 80.3 C coffee
and 12.2 g of 5.00 C cream are added to the cup,
what is the equilibrium temperature of the
system? Assume that no heat is exchanged with the
surroundings, and that the specific heat of
coffee and cream are the same as the specific
heat of water. Answer Step 1 define
variables Mceramic 0.116kg Mcream 0.0122kg
Mcoffee 0.225kg Tceramic,initial 24.0 C
Tcream,initial 5C Tcoffee,initial
80.3C Looking for Tfinal Step 2 find the
corresponding physical model and state applicable
theory According to calorimetrical theory,
Qceramic Qcream Qcoffee 0 Step 3
Solve the equations
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