1. Specific Heat Practice
1. Iron metal has a specific heat of J/goC. How much heat (in J) is transferred to a 5.00 g piece of iron, initially at 20.0 oC, when it is placed in a beaker of boiling water at 1 atm? (3 digits) 2. How many kilocalories of energy are given off to lower the temperature of g of iron from oC to 35.0 oC? (4 digits) 3. If 3.47 kJ were absorbed by 75.0 g H2O at 20.0 oC, what would be the final temperature of the water? (3 digits) 4. A 100. g sample of water at 25.3 oC was placed in a calorimeter g of lead shots (at 100 oC) was added to the calorimeter and the final temperature of the mixture was 34.4 oC. What is the specific heat of lead? (3 digits) 5. A 17.9 g sample of unknown metal was heated to oC. It was then added to g of water in an insulted cup. The water temperature rose from oC to 23.98oC. What is the specific heat of the metal in J/goC? (3 digits)

2. 1. Iron metal has a specific heat of 0. 449 J/goC
1. Iron metal has a specific heat of J/goC. How much heat is transferred to a 5.00 g piece of iron, initially at 20.0 oC, when it is placed in a beaker of boiling water at 1 atm? (3 digits) 2. How many kilocalories of energy are given off to lower the temperature of g of iron from oC to 35.0 oC? (4 digits) 3. If 3.47 kJ were absorbed by 75.0 g H2O at 20.0 oC, what would be the final temperature of the water? (3 digits) 4. A 100. g sample of water at 25.3 oC was placed in a calorimeter g of lead shots (at 100 oC) was added to the calorimeter and the final temperature of the mixture was 34.4 oC. What is the specific heat of lead? (3 digits) 5. A 17.9 g sample of unknown metal was heated to oC. It was then added to g of water in an insulted cup. The water temperature rose from oC to 23.98oC. What is the specific heat of the metal in J/goC? (3 digits)
180. J
1230 kcal
31.1 oC
1.28 J/g oC
0.792 J/goC