Question 1
30.0 mL of pure water at 282 K is mixed with 50.0 mL of pure water at 345 K. What is the final temperature of the mixture?
◦ 314 K
◦ 321 K
◦ 440 K
◦ 627 K
◦ 63 K
Question 2
A 112.8-g piece of a certain metal at 100.0°C is added to a 140.0-g sample of water at 25.0°C . After thermal equilibrium is established, the (final) temperature of the mixture is 29.6°C. What is the specific heat capacity of the metal, assuming it is constant over the temperature range concerned?
◦ 0.34 J/g°C
◦ 0.68 J/g°C
◦ 0.22 J/g°C
◦ 2.9 J/g°C
◦ None of these are correct