A 150 g metal bar requires 2.50 kJ to change its temperature from 27.5 oC to 100.0 oC. What is the specific heat of the metal?
A 150 g metal bar requires 2.50 kJ to change its temperature from 27.5 oC to...
A metal sample weighing 42.6 g and at a temperature of 100.0 oC was placed in 40.6 g of water at 24.8oC. At equilibrium the final temperature of the water and metal was 35.0oC. a. What was the change in temperature for the water? oC b. What was the temperature change for the metal? oC c. Taking the specific heat of water to be 4.184J/goC,caculate the specific heat of the metal. J/goC d. What is the approximate molar mass of...
1.A metal object at 38.0 oC is heated by gaining 11.5 kJ of heat from the environment. The heat capacity, C, of the metal object is 1.55 kJ/ oC. (Note: NOT the specific heat, which has units of J/ g oC) What is the final T? 2.A metal cube loses 3.358 kJ of heat. (i.e., q = -3.358 kJ) The metal has mass of 135.6 grams. The initial temperature of the metal before the heat loss is is 158.0...
A metal object at 90 oC cools to 25.0 oC by losing 5.56 kJ of heat to the environment. What is the heat capacity, C, of the metal object in units of J/ oC? An object at 40.0 oC is heated to 115.0 oC. How many kJ of heat did it gain from the environment? The heat capacity, C, of the object is 0.690 kJ/ oC. 200.0 g of H 2O at 44.0 oC lost 15.7 kJ of heat to...
a) A 430 mL sample of water was cooled from 100.0 oC to 30.0 oC . How much heat was lost? b) How many kilojoules are required to change the temperature of 26.5 g of water from 19.8 oC to 29.0 oC ? c) Calculate the final temperature when 10 mL of water at 80 oC are added to 20 mL of water at 25 oC d) A piece of metal weighing 2.00 g at a temperature of 41.0 oC was placed in a calorimeter in 19.10 mL of water...
An 78.5 g piece of metal whose T = 63.00 oC is placed in a coffee cup calorimeter containing 125 g water. When the system reaches equilibrium, the water has changed from 20.00 oC to 24.00 oC. What is specific heat of metal? An 88.5 g piece of metal whose T = 78.8 oC is placed in a coffee cup calorimeter containing 244 g water. When the system reaches equilibrium, the water has changed from 18.80 oC to 200 oC....
A piece of metal weighing 6.00 g at a temperature of 33.5 oC was placed in a calorimeter in 20.05 mL of water at 19.0 oC . The final equilibrium temperature was found to be 25.9 oC . What is the specific heat of the metal?
The temperature of a metal sample (Cs = 0.656 J/(g. oC) is increased by 45.0 oC by absorbing 45.0 kJ of heat. Calculate the mass of the metal sample.
specific heat capacity of a metal if it requires 178.1 J to change the temperature of 15.0g of the metal from 25.00C to 32.00C?
A piece of metal with specific heat 0.1300 J/g oC is placed in a coffee cup calorimeter containing 432 g water at 18.00 oC. The temperature of the water rose to 25.70 oC. How much heat in kJ was lost by the metal?
Pre lab Q8 A piece of metal weighing 1.00 g at a temperature of 46.9 oC was placed in a calorimeter in 20.20 mL of water at 16.7 oC . The final equilibrium temperature was found to be 28.8 oC . What is the specific heat of the metal? (----------) J/K-g