PLEASE HELP! A 15.5 g sample of an alloy at 98.0°C is placed into 92.4 g of water…?
A 15.5 g sample of an alloy at 98.0°C is placed into 92.4 g of water at 22.0 °C in an insulated Coffee cup with a heat capacity of 9.2 J/K. If the final temperature of the system is 35.0°C, what is the specific heat capacity of the alloy in J/(g.K)? Don’t include units.
cH2O = 4.184 J/g.K
thx
92.4 g x 4.184 J/g deg x (35.0 – 22.0) + 9.2 J/deg x (35.0 – 22) = heat gained = 5145.4 J
15.5 g x heat capacity x (98.0 – 35.0) = heat lost = 5145.4 J
heat capacity = 5145.4 J / (15.5 g x 63 deg) = 5.27 J/g deg
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