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17. How many JOULES of energy are needed to warm 4.37...
4. Ideal Gas Law. At what TEMPERATURE will 416 g torr in a 20.0 L cylinder?...
4. Ideal Gas Law. At what TEMPERATURE will 416 g torr in a 20.0 L cylinder? (2802gas exert a pressure of 815 mole a. 134 K b. 176 K c. 238 K d. 337 18. Given the table below of specific heat capacities, which one will experience the SMALLEST increase in temperature if 10.0 J of heat is added to 1.00 g of each of these substances? Substance Water Cast iron Lead (Pb) Specific heat capacity 4.184 0.449 0.130 a....
Question 4 of 8 > Substance lead Specific heat capacity (J/g °C) 0.128 0.235 0.385 silver...
Question 4 of 8 > Substance lead Specific heat capacity (J/g °C) 0.128 0.235 0.385 silver copper iron 0.449 aluminum 0.903 4.184 water An unknown substance has a mass of 18.9 g. The temperature of the substance increases by 18.3 °C when 81.3 J of heat is added to the substance. What is the most likely identity of the substance? O aluminum silver O water O copper
can you explain the correcr answer A metal alloy bolt is initially at 100.0°C. It is...
can you explain the correcr answer
A metal alloy bolt is initially at 100.0°C. It is dropped into a coffee cup calorimeter containing 500 g of water at a temperature of 20.0°C Arter stirring, the fnal temperature of both bolt and water is 25.0°C. Assuming no heat losses, and that the specific heat (capacity of water is 4.18 J/gK what is the heat capacity of the bolt in J/K? A 2.79 JK 3.3.33 J/K G. 139 J/K 1.200 JK None...
Energy/Specific Heat (q=mcAT) 1. Determine the energy, in Joules, needed to increase the temperature of 20.00...
Energy/Specific Heat (q=mcAT) 1. Determine the energy, in Joules, needed to increase the temperature of 20.00 g of water from 300.0 K to 365.0 K. (Remember that one degree of Celsius contains the same amount of energy as one Kelvin.) 2. Determine the energy, in Joules, released as 1.00 kilogram of water cools from 72.0°C to 30.0°C. 3. 25.0 g of mercury are heated from 25.0° C to 155.0°C and absorbs 455 joules of heat in the process. Calculate the...
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...
What is the heat capacity of a 20.2-kg block of ice? The specific heat capacity of...
What is the heat capacity of a 20.2-kg block of ice? The specific heat capacity of ice is 2.10 kJ/kg K. kJ/K It takes 880 J to raise the temperature of 350 g of lead from 0°C to 20.0°C. What is the specific heat of lead? kJ/(kg K) A heating coil inside an electric kettle delivers 3.20 kW of electric power to the water in the kettle. How long will it take to raise the temperature of 0.390 kg of...
Question 11 (8 points) For the nitrate ion, NO3. predict the bond energy between nitrogen and...
Question 11 (8 points) For the nitrate ion, NO3. predict the bond energy between nitrogen and the oxygen labeled "A". The bond enthalpy of N-Ois 222 kJ.mol-1 and N-O is 590 k.mol-1 A :O: :0: :0: N :01 406 kJ mol-1 222 kJ.mol-1 590 kJ.mol-1 345 kJ mol 1 Question 12 (8 points) When a 45.0 g sample of an alloy at 100.0 °C is dropped into 100.0 g of water at 25.0°C, the final temperature is 37.0 °C. What...
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....
I know the answers but I don't know how to solve the work. Please show the...
I know the answers but I don't know how to solve the work.
Please show the work
1.)
Answer: D
2.)
Answer: D
3.)
Answer: A
Aluminum has a specific heat of 0.902 J/g.°C. How many joules of heat are required to change the temperature of 8.50 grams of aluminum from 25.0°C to 93.4°C? a. 7.67 J b. 71.7 J c. 192J d. 524 J Water has a specific heat of 4.18 J/g. °C. If 35.0 g of water at...
The specific heat of aluminum is 0.900 j/g* C, how many joules of energy required to...
The specific heat of aluminum is 0.900 j/g* C, how many joules of energy required to raise the temperature of 20.0 g of Al from 10.0°C to 15.0°C ? 79 J 90.0 J 100.0 J 112 J
4. Ideal Gas Law. At what TEMPERATURE will 416 g torr in a 20.0 L cylinder? (2802gas exert a pressure of 815 mole a. 134 K b. 176 K c. 238 K d. 337 18. Given the table below of specific heat capacities, which one will experience the SMALLEST increase in temperature if 10.0 J of heat is added to 1.00 g of each of these substances? Substance Water Cast iron Lead (Pb) Specific heat capacity 4.184 0.449 0.130 a....
Question 4 of 8 > Substance lead Specific heat capacity (J/g °C) 0.128 0.235 0.385 silver copper iron 0.449 aluminum 0.903 4.184 water An unknown substance has a mass of 18.9 g. The temperature of the substance increases by 18.3 °C when 81.3 J of heat is added to the substance. What is the most likely identity of the substance? O aluminum silver O water O copper
can you explain the correcr answer
A metal alloy bolt is initially at 100.0°C. It is dropped into a coffee cup calorimeter containing 500 g of water at a temperature of 20.0°C Arter stirring, the fnal temperature of both bolt and water is 25.0°C. Assuming no heat losses, and that the specific heat (capacity of water is 4.18 J/gK what is the heat capacity of the bolt in J/K? A 2.79 JK 3.3.33 J/K G. 139 J/K 1.200 JK None...
Energy/Specific Heat (q=mcAT) 1. Determine the energy, in Joules, needed to increase the temperature of 20.00 g of water from 300.0 K to 365.0 K. (Remember that one degree of Celsius contains the same amount of energy as one Kelvin.) 2. Determine the energy, in Joules, released as 1.00 kilogram of water cools from 72.0°C to 30.0°C. 3. 25.0 g of mercury are heated from 25.0° C to 155.0°C and absorbs 455 joules of heat in the process. Calculate the...
What is the heat capacity of a 20.2-kg block of ice? The specific heat capacity of ice is 2.10 kJ/kg K. kJ/K It takes 880 J to raise the temperature of 350 g of lead from 0°C to 20.0°C. What is the specific heat of lead? kJ/(kg K) A heating coil inside an electric kettle delivers 3.20 kW of electric power to the water in the kettle. How long will it take to raise the temperature of 0.390 kg of...
Question 11 (8 points) For the nitrate ion, NO3. predict the bond energy between nitrogen and the oxygen labeled "A". The bond enthalpy of N-Ois 222 kJ.mol-1 and N-O is 590 k.mol-1 A :O: :0: :0: N :01 406 kJ mol-1 222 kJ.mol-1 590 kJ.mol-1 345 kJ mol 1 Question 12 (8 points) When a 45.0 g sample of an alloy at 100.0 °C is dropped into 100.0 g of water at 25.0°C, the final temperature is 37.0 °C. What...
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....
I know the answers but I don't know how to solve the work.
Please show the work
1.)
Answer: D
2.)
Answer: D
3.)
Answer: A
Aluminum has a specific heat of 0.902 J/g.°C. How many joules of heat are required to change the temperature of 8.50 grams of aluminum from 25.0°C to 93.4°C? a. 7.67 J b. 71.7 J c. 192J d. 524 J Water has a specific heat of 4.18 J/g. °C. If 35.0 g of water at...
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