Answered

A sample of aluminum at 18.0°C is warmed to 137.0°C when 835 cal of heat is added. What is the mass of the aluminum? (Caluminum=
0.22 kcal/kg°C)
What is the mass of the aluminum in grams?



Answer :

MathPhys

Answer:

31,900 g

Explanation:

Heat transferred is equal to the mass times the specific heat capacity times the change in temperature. (Note that cal and kcal are the same.)

q = mCΔT

835 cal = m (0.22 cal/kg/°C) (137.0°C − 18.0°C)

m = 31.9 kg

m = 31,900 g

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