Homework Answers
Since the specific heat of water is 1,we can use the formula for specific heat to evaluate the heat generated. Specific heat is given by the heat generated divided by the change in temperature and also divided by the mass of water. So putting the value of specific heat as 1, heat generated will be given by the product of mass of water and change in temperature
Answer a is correct.
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A slice of pizza was burned and all of the heat was transferred to 1000g of...
Please answer in detail. Question 3: When you put heat into an object and the temperature...
Please answer in detail.
Question 3: When you put heat into an object and the temperature changes, what factors influence how much the temperature will change? Site experimental results that support what you say. Question 4: a) If you add 20 calories to 10 grams of water at 10 degrees Celsius, what will happen? b) If you add 20 calories to 1 gram of water at 10 degrees Celsius, what will happen? c) If you add 20 calories to 1...
please help with this If 1.15 g of glucose (molar mass = 180.2 g/mol) is burned...
please help with this If 1.15 g of glucose (molar mass = 180.2 g/mol) is burned in a calorimeter, the temperature increases from 23.40 degrees Celsius to 27.21 degrees Celsius. if the heat capacity of the calorimeter is 958 J/ degrees celsius and the calorimeter contains 899.5 g of water, calculate the amount of heat given off per mole of glucose under these conditions.
1. An unknown sample is being evaluated in lab. What is the specific heat of the...
1. An unknown sample is being evaluated in lab. What is the specific heat of the compound if it requires 105.06 J to raise the temperature of 51.68 grams of the unknown from 15.25 °C to 22.9 °C. 2. A 25.00 gram sample of an unknown metal initially at 99.0 degrees Celsius is added to 50.00 grams of water initially at 5.94 degrees Celsius. The final temperature of the system is 20.15 degrees Celsius. Calculate the specific heat of the...
1. An unknown sample is being evaluated in lab. What is the specific heat of the...
1. An unknown sample is being evaluated in lab. What is the specific heat of the compound if it requires 105.06 J to raise the temperature of 51.68 grams of the unknown from 15.25 °C to 22.9 °C. 2. A 25.00 gram sample of an unknown metal initially at 99.0 degrees Celsius is added to 50.00 grams of water initially at 5.94 degrees Celsius. The final temperature of the system is 20.15 degrees Celsius. Calculate the specific heat of the...
10. A bomb calorimeter has a heat capacity of 3.03 kJ/C. when 20 grams of sodium are burned inside, the temperature...
10. A bomb calorimeter has a heat capacity of 3.03 kJ/C. when 20 grams of sodium are burned inside, the temperature increases by 2.03 °C. Calculate the energy change (in kJ/mol) by burning this amount of sodium? &196 males x molei of
A Review | Constar 100 J of heat energy are transferred to 30 g of mercury....
A Review | Constar 100 J of heat energy are transferred to 30 g of mercury. By how much does the temperature of mercury increase? The specific heat of mercury is 140 "kek Express your answer in degrees Celsius. AT = 24 °C Submit Previous Answers All attempts used; correct answer displayed Part B How much heat is needed to raise the temperature of 30 g of water by the same amount? The specific heat of water is 4190 Express...
Calculations are based on one trial. To receive full credit, you must SHOW ALL OF YOUR...
Calculations are based on one trial.
To receive full credit, you must SHOW ALL OF YOUR WORK. Answers that do not have complete work shown will be marked as incorrect. Workstation : Part A: Specific Heat of an unknown Metal 1. Unknown number 1326 18.09 8.37 2. Mass of unknown metal 9 3. Mass of empty calorimeter 9 Trial 1 Trial 2 Mass of calorimeter + water 45.23 g g Mass water 36.86 g g Initial Temperature of metal 100...
Q=M x C x deltaT Need help calculating the heat transferred from water to ice in...
Q=M x C x deltaT Need help calculating the heat transferred from water to ice in an experiment. mass of water in calorimeter = 99.8 Change in temp = -19.19 specific heat of water = 4.18 Do I multiply all the values?
the amount of energy released by burning a fuel source, measured in energy per mass, is called the fuel value. if all e...
the amount of energy released by burning a fuel source, measured in energy per mass, is called the fuel value. if all energy obtained from burning 1.30 lb of propane (fuel value is 11.09 kcal/g) is used to heat 123.0 kg of water at an initial temperature of 19.2 degrees Celsius, what is the final temperature?
a) calculate the temperature change for a 987 gram sample of water that absorbed 6,990 joules...
a) calculate the temperature change for a 987 gram sample of water that absorbed 6,990 joules of heat. is this endo- or exorthermic? b) how many grams of water when absorbing 12,000 calories will heat from 31.2 degrees c to 99.5 degrees c? c) 69.8 grams of aluminum is heated with 3,900 joules of energy. what will be the temperature change? what would the temperature be if the initial temperature was 25.0 degrees c? the c for aluminum is =...
Please answer in detail.
Question 3: When you put heat into an object and the temperature changes, what factors influence how much the temperature will change? Site experimental results that support what you say. Question 4: a) If you add 20 calories to 10 grams of water at 10 degrees Celsius, what will happen? b) If you add 20 calories to 1 gram of water at 10 degrees Celsius, what will happen? c) If you add 20 calories to 1...
10. A bomb calorimeter has a heat capacity of 3.03 kJ/C. when 20 grams of sodium are burned inside, the temperature increases by 2.03 °C. Calculate the energy change (in kJ/mol) by burning this amount of sodium? &196 males x molei of
A Review | Constar 100 J of heat energy are transferred to 30 g of mercury. By how much does the temperature of mercury increase? The specific heat of mercury is 140 "kek Express your answer in degrees Celsius. AT = 24 °C Submit Previous Answers All attempts used; correct answer displayed Part B How much heat is needed to raise the temperature of 30 g of water by the same amount? The specific heat of water is 4190 Express...
Calculations are based on one trial.
To receive full credit, you must SHOW ALL OF YOUR WORK. Answers that do not have complete work shown will be marked as incorrect. Workstation : Part A: Specific Heat of an unknown Metal 1. Unknown number 1326 18.09 8.37 2. Mass of unknown metal 9 3. Mass of empty calorimeter 9 Trial 1 Trial 2 Mass of calorimeter + water 45.23 g g Mass water 36.86 g g Initial Temperature of metal 100...
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