Homework Answers
30. How much heat energy, in joules, is required to raise the temperature of 1 mole of sulfur from 100. to 500.°C? S...
30. How much heat energy, in joules, is required to raise the temperature of 1 mole of sulfur from 100. to 500.°C? Specific heat for sulfur is 0.705 J/g-°C. a. 280 b. 1.28 X 104 c. 9.04 X 103 d. 22.6 e. 567 31. What is the final temperature, in °C, when 60.0 g of water at 80°C is mixed with 40.0 g of water at 25°C? The specific heat of water is 4.184 J/g-°C. a. 53 b. 58 c....
6) There is 15.0 g of ice at 0.0C. How many grams of water at 50.0C must be added to the ice to melt all the ice an...
6) There is 15.0 g of ice at 0.0C. How many grams of water at 50.0C must be added to the ice to melt all the ice and keep the temperature of the mixture at 0.OC? H2O(s)= 2.06J/gc Specific heat: H2O(0) = (4.18 J/g C) H20 heat of vaporization=2260 J/g H2O(g)=(2.03 J/g C) H2O heat of fusion=333 J/g b)25 8 c)23.98 d)7. 58 )0.428
Problem 3 A 50.0 gram block of metal at 100°C was dropped into a mixture of...
Problem 3 A 50.0 gram block of metal at 100°C was dropped into a mixture of 50 grams of ice and 50 grams of water at 0°C. As a result 7.00 grams of the ice melted. What is the specific heat of the metal? Heat of fusion of ice 333 J/g
Ethanol has a vapor pressure of 58.3 torr at 25 degree C. Determine the delta H...
Ethanol has a vapor pressure of 58.3 torr at 25 degree C. Determine the delta H (we assume that delta H in independent of temperature). l_n (p_2/58, 3) = delta / (1/351, 4 - 1/298) A 0.250 g chunk of sodium metal is cautiously dropped into a mixture of 50.0 g of water wend 50.0 g of ice at 0 degree C. The reaction is: 2Na(s) 2H2O) + 2H_2O(l) rightarrow 2NaOH(aq) +H_2(g); delta H = -368 kJ. Will all the...
A 95.0g piece of metal (with a specific heat of 1.55 J/g°C) is heated to 375°C...
A 95.0g piece of metal (with a specific heat of 1.55 J/g°C) is
heated to 375°C and then placed into a calorimeter, which contains
60.0g of ice in equilibrium with 40.0g of liquid water. How many
grams of ice will melt in this process? A) 7.3, B) 16.6, C) 34.2,
D) 22.9, or E) 52.4. [The key says the answer is B]. Please show all work. Thank
you!
9. A 95.0 g piece of metal (with a specific heat of...
please show the steps for A and B and C A Heat is added to a...
please show the steps for A and B and C
A Heat is added to a pure substance in a closed container at a constant rate. The figure shows a graph of the temperature of the substance as a function of time. If Lf - latent heat of fusion and Ly - latent heat of vaporization, what is the value of the ratio Ly/L for this substance? Temp. A) 5.0 B) 4.5 Time C) 1.5 D) 3.5 E) 7.2 B...
CAN SOMEONE PLEASE SOLVE C,D,E ALL OF THEM STEP BY STEP ( CLEAR HANDWRITING) Data: mass-specific...
CAN SOMEONE PLEASE SOLVE C,D,E
ALL OF THEM STEP BY STEP ( CLEAR HANDWRITING)
Data: mass-specific heat capacity of silver: cs 234 J kg-1K-1 mass-specific heat capacity of gold: c 126 J kg1K1 mass-specific heat capacity of platinum: cp 136 J kg K1 mass-specific heat capacity of ice: c 2100 J kg-1K-1 mass-specific heat capacity of water: cy4190 J kg 1K- latent heat of fusion of water: If 3.35 × 105 J kg-1 (a) Water of mass 0.1 kg at...
What mass of ice would it take to lower the temperature of 0.5kg of water 20°C...
What mass of ice would it take to lower the temperature of 0.5kg of water 20°C to 0°C. 7. from A 100-g piece of iron is heated to 100°C and then dropped into a cavity in a large block ofice at 0°C. How much mass of ice will melt? 8. 50 grams of hot water at 80°C is poured into a cavity in a very large block ofice at 0°C. The final temperature of the water in the cavity is...
Please show your work! 6. (2 points) You are given 400 g of coffee (same specific heat as water) at 95.0°C (too hot to S...
Please show your work!
6. (2 points) You are given 400 g of coffee (same specific heat as water) at 95.0°C (too hot to SS drink). How much ice (at 0.0°C) must be added to your coffee in order to cool it to 50.0°C? Neglect heat content of the cup and heat exchanges with the surroundings. Latent heat of fusion of ice is 3.33x10 J/kg: Specific heat of ice is 2100 J/(kgx°C). You must know the specific heat of water....
Need help with nmbr 5 parts A through D and number 6. PLEASE SHOW WORK! 5....
Need help with nmbr 5 parts A through D and number 6.
PLEASE SHOW WORK!
5. Ice of mass m 200 g at a temperature of- 2'C is placed in a calorimeter that contains tea at 25'C. All ice melts and the final equilibrium temperature of the tea is 10°C. The specific heat of ice is 2108 J/kgK, the latent heat of fusion for ice is 2, 334 x 10 J/kg, and the specific heat of tea is 4180 J/kgk....
30. How much heat energy, in joules, is required to raise the temperature of 1 mole of sulfur from 100. to 500.°C? Specific heat for sulfur is 0.705 J/g-°C. a. 280 b. 1.28 X 104 c. 9.04 X 103 d. 22.6 e. 567 31. What is the final temperature, in °C, when 60.0 g of water at 80°C is mixed with 40.0 g of water at 25°C? The specific heat of water is 4.184 J/g-°C. a. 53 b. 58 c....
6) There is 15.0 g of ice at 0.0C. How many grams of water at 50.0C must be added to the ice to melt all the ice and keep the temperature of the mixture at 0.OC? H2O(s)= 2.06J/gc Specific heat: H2O(0) = (4.18 J/g C) H20 heat of vaporization=2260 J/g H2O(g)=(2.03 J/g C) H2O heat of fusion=333 J/g b)25 8 c)23.98 d)7. 58 )0.428
Problem 3 A 50.0 gram block of metal at 100°C was dropped into a mixture of 50 grams of ice and 50 grams of water at 0°C. As a result 7.00 grams of the ice melted. What is the specific heat of the metal? Heat of fusion of ice 333 J/g
Ethanol has a vapor pressure of 58.3 torr at 25 degree C. Determine the delta H (we assume that delta H in independent of temperature). l_n (p_2/58, 3) = delta / (1/351, 4 - 1/298) A 0.250 g chunk of sodium metal is cautiously dropped into a mixture of 50.0 g of water wend 50.0 g of ice at 0 degree C. The reaction is: 2Na(s) 2H2O) + 2H_2O(l) rightarrow 2NaOH(aq) +H_2(g); delta H = -368 kJ. Will all the...
A 95.0g piece of metal (with a specific heat of 1.55 J/g°C) is
heated to 375°C and then placed into a calorimeter, which contains
60.0g of ice in equilibrium with 40.0g of liquid water. How many
grams of ice will melt in this process? A) 7.3, B) 16.6, C) 34.2,
D) 22.9, or E) 52.4. [The key says the answer is B]. Please show all work. Thank
you!
9. A 95.0 g piece of metal (with a specific heat of...
please show the steps for A and B and C
A Heat is added to a pure substance in a closed container at a constant rate. The figure shows a graph of the temperature of the substance as a function of time. If Lf - latent heat of fusion and Ly - latent heat of vaporization, what is the value of the ratio Ly/L for this substance? Temp. A) 5.0 B) 4.5 Time C) 1.5 D) 3.5 E) 7.2 B...
CAN SOMEONE PLEASE SOLVE C,D,E
ALL OF THEM STEP BY STEP ( CLEAR HANDWRITING)
Data: mass-specific heat capacity of silver: cs 234 J kg-1K-1 mass-specific heat capacity of gold: c 126 J kg1K1 mass-specific heat capacity of platinum: cp 136 J kg K1 mass-specific heat capacity of ice: c 2100 J kg-1K-1 mass-specific heat capacity of water: cy4190 J kg 1K- latent heat of fusion of water: If 3.35 × 105 J kg-1 (a) Water of mass 0.1 kg at...
What mass of ice would it take to lower the temperature of 0.5kg of water 20°C to 0°C. 7. from A 100-g piece of iron is heated to 100°C and then dropped into a cavity in a large block ofice at 0°C. How much mass of ice will melt? 8. 50 grams of hot water at 80°C is poured into a cavity in a very large block ofice at 0°C. The final temperature of the water in the cavity is...
Please show your work!
6. (2 points) You are given 400 g of coffee (same specific heat as water) at 95.0°C (too hot to SS drink). How much ice (at 0.0°C) must be added to your coffee in order to cool it to 50.0°C? Neglect heat content of the cup and heat exchanges with the surroundings. Latent heat of fusion of ice is 3.33x10 J/kg: Specific heat of ice is 2100 J/(kgx°C). You must know the specific heat of water....
Need help with nmbr 5 parts A through D and number 6.
PLEASE SHOW WORK!
5. Ice of mass m 200 g at a temperature of- 2'C is placed in a calorimeter that contains tea at 25'C. All ice melts and the final equilibrium temperature of the tea is 10°C. The specific heat of ice is 2108 J/kgK, the latent heat of fusion for ice is 2, 334 x 10 J/kg, and the specific heat of tea is 4180 J/kgk....
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