Calculate the specific heat capacity of both metal slugs separately. (See assumptions on page 2 of...
- Calculate the specific heat capacity of both metal slugs separately. (See assumptions on page 2 of the background reading.)
Specific Heat Capacity Data Table:
|
Metal 1 |
Metal 2 |
|
|
Mass of the metal slug (g) |
58.982 |
56.162 |
|
Color of slug |
silver |
Dark silver |
|
Mass of the empty coffee cup (g) |
3.318 |
3.318 |
|
Mass of water + coffee cup (g) |
50.010 |
51.032 |
|
Mass of water (g) |
46.692 |
46.692 |
|
Ti of metal (°C) |
4.16 |
6.1 |
|
Ti of water (°C) |
28.58 |
30.52 |
|
Tf (°C) |
98.9 |
92.2 |
|
ΔT of metal (°C) |
||
|
ΔT of water (°C) |
Homework Answers
| Metal 1 | Metal 2 | |
| ∆T of Metal (°C) | 94.74°C | 86.1°C |
| ∆T of Water (°C) | 70.32°C | 61.68°C |
| Total amount of Heat released | 13.738 kJ | 12.05 kJ |
| Specific Heat Capacity | 2.458 J/g-°C | 2.482 J/g-°C |
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Calculate the specific heat capacity of both metal slugs
separately. (See assumptions on page 2 of...
It can be shown that as a mass m with specific heat c changes temperature from...
It can be shown that as a mass m with specific heat c changes temperature from Ti to Tf its change in entropy is ΔS=mcln(Tf/Ti) if the temperatures are expressed in kelvin. Suppose you put 78 g of milk at 278 K into an insulated cup containing 290 g of coffee at 355 K, and that each has the specific heat of water. The system comes to an equilibrium temperature of 339 K. Part A What is the entropy change...
Type 2—Coffee Cup Calorimetry (see page 126 for example) 1. A 180.0 g metal sample is...
Type 2—Coffee Cup Calorimetry (see page 126 for example) 1. A 180.0 g metal sample is heated to 100.0 °C and then transferred to a constant pressure calorimeter filled with 80.0 g water at 25.0 °C. If the final temperature of the water and metal is 33.0 °C, what is the specific capacity heat of the metal (Cmetal)? (Assume the heat capacity of the calorimeter is negligible) (5 pts) Start with: Clost = - gained
Prelaboratory Assignment: Specific Heat Capacity 1. Technical objective. 2. What are the units for heat capacity,...
Prelaboratory Assignment: Specific Heat Capacity 1. Technical objective. 2. What are the units for heat capacity, specific heat capacity, and molar heat capacity. 3. If a sample has an initial temperature of 22.15º and a final temperature of 18.45° C, what is AT? Is it any different in kelvin? A 100 g piece of metal, initially at 85° C is put (without heat loss or gain) into a cup with 50 g of water, initially at 22° C. Which of...
QUESTION 2 The specific heat of lead is 0.11 yg-C. How much heat is given off by lead with a mass of 85 g to decrea...
QUESTION 2 The specific heat of lead is 0.11 yg-C. How much heat is given off by lead with a mass of 85 g to decrease its temperature from 200 °C to 10°C a -0.0071J b.0.0071 Oc 1776.5 d.-1776.5 QUESTION 3 A 55.0-g sample of hot metal initially at 99.5°C was added to 40.0 g of water in a Styrofoam coffee cup calorimeter. The water and calorimeter were initially at 21.0°C. If the final temperature of mixture was 30.50C, calculate...
4. Heat transfer: q = mass x Cs x ΔT and –qreaction = +qsolution a. A...
4. Heat transfer: q = mass x Cs x ΔT and –qreaction = +qsolution a. A piece of metal with a mass of 8.6 g was heated to 100.0°C and dropped into a coffee cup calorimeter containing 402.4 g of water at 25.0°C. If the temperature of the water and the metal at thermal equilibrium is 26.4°C, what is the specific heat of this metal in J/g°C? b. How much heat energy must be added in order to boil a...
A coffee cup calorimeter is prepared, containing 100.000 g of water (specific heat capacity = 4.184...
A coffee cup calorimeter is prepared, containing 100.000 g of water (specific heat capacity = 4.184 J/g K) at initial temperature 80.000 C. A salt weighing 5.445 g is quickly added. The salt has a molar mass of 250.465 g/mol. The final temperature of the solution is 33.49 C. Assume no heat loss to the surroundings. Assume the specific heat capacity of the solution is equal to that of pure water, and that the mass of the solution is equal...
Ccal = 42.4 J/K What is the specific heat of the metal (Cs,metal)? Mass of Metal...
Ccal = 42.4 J/K
What is the specific heat of the metal (Cs,metal)?
Mass of Metal Sample 43.085 g | Mass of Metal Cup from Calorimeter 44.160 g Mass of Cup + Water 83.592 g Initial Temperature of Water 20.17 0 Final Temperature of Water + Metal 25.66 C
A coffee cup calorimeter is prepared, containing 100.000 g of water (specific heat capacity = 4.184...
A coffee cup calorimeter is prepared, containing 100.000 g of water (specific heat capacity = 4.184 J/g K) at initial temperature 80.000 C. A salt weighing 5.451 g is quickly added. The salt has a molar mass of 124.742 g/mol. The final temperature of the solution is 73.937 C. Assume no heat loss to the surroundings. Assume the specific heat capacity of the solution is equal to that of pure water, and that the mass of the solution is equal...
A coffee cup calorimeter is prepared, containing 100.000 g of water (specific heat capacity = 4.184...
A coffee cup calorimeter is prepared, containing 100.000 g of water (specific heat capacity = 4.184 J/g K) at initial temperature 80.000 C. A salt weighing 7.253 g is quickly added. The salt has a molar mass of 149.325 g/mol. The final temperature of the solution is 7.532 C. Assume no heat loss to the surroundings. Assume the specific heat capacity of the solution is equal to that of pure water, and that the mass of the solution is equal...
A coffee cup calorimeter is prepared, containing 100.000 g of water (specific heat capacity = 4.184...
A coffee cup calorimeter is prepared, containing 100.000 g of water (specific heat capacity = 4.184 J/g K) at initial temperature 80.000 C. A salt weighing 5.398 g is quickly added. The salt has a molar mass of 497.886 g/mol. The final temperature of the solution is 8.675 C. Assume no heat loss to the surroundings. Assume the specific heat capacity of the solution is equal to that of pure water, and that the mass of the solution is equal...
Type 2—Coffee Cup Calorimetry (see page 126 for example) 1. A 180.0 g metal sample is heated to 100.0 °C and then transferred to a constant pressure calorimeter filled with 80.0 g water at 25.0 °C. If the final temperature of the water and metal is 33.0 °C, what is the specific capacity heat of the metal (Cmetal)? (Assume the heat capacity of the calorimeter is negligible) (5 pts) Start with: Clost = - gained
Prelaboratory Assignment: Specific Heat Capacity 1. Technical objective. 2. What are the units for heat capacity, specific heat capacity, and molar heat capacity. 3. If a sample has an initial temperature of 22.15º and a final temperature of 18.45° C, what is AT? Is it any different in kelvin? A 100 g piece of metal, initially at 85° C is put (without heat loss or gain) into a cup with 50 g of water, initially at 22° C. Which of...
QUESTION 2 The specific heat of lead is 0.11 yg-C. How much heat is given off by lead with a mass of 85 g to decrease its temperature from 200 °C to 10°C a -0.0071J b.0.0071 Oc 1776.5 d.-1776.5 QUESTION 3 A 55.0-g sample of hot metal initially at 99.5°C was added to 40.0 g of water in a Styrofoam coffee cup calorimeter. The water and calorimeter were initially at 21.0°C. If the final temperature of mixture was 30.50C, calculate...
Ccal = 42.4 J/K
What is the specific heat of the metal (Cs,metal)?
Mass of Metal Sample 43.085 g | Mass of Metal Cup from Calorimeter 44.160 g Mass of Cup + Water 83.592 g Initial Temperature of Water 20.17 0 Final Temperature of Water + Metal 25.66 C
A coffee cup calorimeter is prepared, containing 100.000 g of water (specific heat capacity = 4.184 J/g K) at initial temperature 80.000 C. A salt weighing 7.253 g is quickly added. The salt has a molar mass of 149.325 g/mol. The final temperature of the solution is 7.532 C. Assume no heat loss to the surroundings. Assume the specific heat capacity of the solution is equal to that of pure water, and that the mass of the solution is equal...
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