Could someone explain how to solve this problem? Calculate which is more efficient (in kJ/Kg) as...
Could someone explain how to solve this problem? Calculate which is more efficient (in kJ/Kg) as a fuel, coal or propane. Which is more efficient environmentally in energy produced per mol CO2 produced? Assume all compounds are in the gas state except for carbon which is in the solid state.
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Could someone explain how to solve this problem? Calculate which
is more efficient (in kJ/Kg) as...
Many power plants produce energy by burning carbon-based fuels, which also produces carbon dioxide. Carbon dioxide...
Many power plants produce energy by burning carbon-based fuels, which also produces carbon dioxide. Carbon dioxide is a greenhouse gas, so over-production can have negative effects on the environment. Use enthalpy of formation data to calculate the number of moles of CO2(g) produced per megajoule of heat released from the combustion of each fuel under standard conditions (1 atm and 25 �C). Each must be in mol * MJ^-1 (a) coal, C(s, graphite) (b) natural gas, CH4(g); (c) propane, C3H8(g);...
Many power plants produce energy by burning carbon-based fuels, which also produces carbon dioxide Carbon dioxide...
Many power plants produce energy by burning carbon-based fuels, which also produces carbon dioxide Carbon dioxide is a greenhouse gas, so over-production can have negative effects on the environment. Use enthalpy of formation data to calculate the number of moles of CO2(g) produced per megajoule of heat released from the combustion of each fuel under standard conditions (1 atm and 25 °C). (a) coal, C(s, graphite); (b) natural gas, CH4(g): Number Number mol MJ1 mol MJ (c) propane, C3Hs(g); (d)...
4. a) A building owner is thinking about replacing old-style incandescent light bulbs with more energy-efficient...
4. a) A building owner is thinking about replacing old-style incandescent light bulbs with more energy-efficient light-emitting diode (LED) lighting. Estimate the payback period (in years) for replacing a 100 W incandescent light bulb with an LED light that provides the same light output, but consumes only 18 W. Given data .price of electricity- $0.13/kWh assume the light is turned on for 5 hours per day, every day price of incandescent bulb = $1.20 .price of LED S19.10 annual interest...
4. a) A building owner is thinking about replacing old-style incandescent light bulbs with more energy-efficient...
4. a) A building owner is thinking about replacing old-style incandescent light bulbs with more energy-efficient light-emitting diode (LED) lighting. Estimate the payback period (in years) for replacing a 100 W incandescent light bulb with an LED light that provides the same light output, but consumes only 18 W. Given data .price of electricity- $0.13/kWh assume the light is turned on for 5 hours per day, every day price of incandescent bulb = $1.20 .price of LED S19.10 annual interest...
I'm very confused. If someone could please explain how to solve this problem I'd greatly appreciate...
I'm very confused. If someone could please explain how to
solve this problem I'd greatly appreciate it.
2. In the combustion of octane: 2CsHisogo 25020g 16CO. 18H2Ogn what would 2(g be the rate of formation of CO2 if the concentration of octane was changing at a rate of 0.25mol/Ls? a)Referring to the preceding question, if the rate of formation of H2O is 0.900 mol/Ls, what is the rate of reaction of CsHis? b)At what rate will o2 be reacting under...
Problem 2 A spring-loaded piston-cylinder device contains 1 kg of carbon dioxide that is initially at...
Problem 2 A spring-loaded piston-cylinder device contains 1 kg of carbon dioxide that is initially at 100 kPa and 25°C (State 1). Heat is added until the gas reaches 800°C, at which point the pressure is 300 kPa (State 2) (a) Determine the boundary work (kJ) done by the CO2. Assume the spring is linear. (b) Determine the amount of heat transfer (kJ) into the CO2. Data for CO2: R = 0.1889 kJ/(kg K), Cpo = 0.846 kJ/(kg K), Cvo...
can someone explain which formula was used to solve this problem please. thank you An 80...
can someone explain which formula was used to solve this
problem please. thank you
An 80 kg human body uses about 14 MJ of energy per day. What is the average power of the human body? 162 W A B 591 W 9.72KW D 583 kW
Can someone explain how to do this. 11. A certain reaction achieves equilibrium at 742 C....
Can someone explain how to do this.
11. A certain reaction achieves equilibrium at 742 C. AH for the reaction at (Name - Printed) temperature is -50.8 kJ/mol. Calculate AS and also calculate the free energy change, ΔG。, at standard conditions (25 ℃, 1 atm, and all solutes at 1 M). Assume that AH and AS are independent of temperature. a) Calculate 4S. 742℃+273-7015K KJ/mol 015L b) Calculate AG 4G-t50.BKJ/moi)-wi'k)(0.05kilmoi)毧 46 (-50.8KJmo(0.15 KJmo) AG -101.55 KJImo Consider the reaction of...
Could someone help me with this problem? I do not know where to start or how...
Could someone help me with this problem? I do not know where to start or how to solve this. The most prominent line in the atomic spectrum of mercury is at 253.652nm. Other lines are located at 365.015 nm, 404.833 nm, and 1013.975nm. Answer and explain Which of these lines represents the highest energy light and what is the frequency of the most prominent line?
Could someone please guide me through these problems? Correct answers are highlighted. 9. Calculate the total...
Could someone please guide me through these problems? Correct
answers are highlighted.
9. Calculate the total vapor pressure (in Torr) at 50°C of an ideal solution of methanol (CH3OH) and propanol (C3H7OH) in which the mass % concentration of methanol is 58.0%. The vapor pressure at 50°C of methanol is 416.3 Torr and that of propanol is 179.3 Torr. d) 315.8 b) 278.8 a) 350.3 c) 300.3 e) 239.8 12. The standard enthalpy of combustion of acetic acid, CH3COOH (1),...
Many power plants produce energy by burning carbon-based fuels, which also produces carbon dioxide Carbon dioxide is a greenhouse gas, so over-production can have negative effects on the environment. Use enthalpy of formation data to calculate the number of moles of CO2(g) produced per megajoule of heat released from the combustion of each fuel under standard conditions (1 atm and 25 °C). (a) coal, C(s, graphite); (b) natural gas, CH4(g): Number Number mol MJ1 mol MJ (c) propane, C3Hs(g); (d)...
4. a) A building owner is thinking about replacing old-style incandescent light bulbs with more energy-efficient light-emitting diode (LED) lighting. Estimate the payback period (in years) for replacing a 100 W incandescent light bulb with an LED light that provides the same light output, but consumes only 18 W. Given data .price of electricity- $0.13/kWh assume the light is turned on for 5 hours per day, every day price of incandescent bulb = $1.20 .price of LED S19.10 annual interest...
4. a) A building owner is thinking about replacing old-style incandescent light bulbs with more energy-efficient light-emitting diode (LED) lighting. Estimate the payback period (in years) for replacing a 100 W incandescent light bulb with an LED light that provides the same light output, but consumes only 18 W. Given data .price of electricity- $0.13/kWh assume the light is turned on for 5 hours per day, every day price of incandescent bulb = $1.20 .price of LED S19.10 annual interest...
I'm very confused. If someone could please explain how to
solve this problem I'd greatly appreciate it.
2. In the combustion of octane: 2CsHisogo 25020g 16CO. 18H2Ogn what would 2(g be the rate of formation of CO2 if the concentration of octane was changing at a rate of 0.25mol/Ls? a)Referring to the preceding question, if the rate of formation of H2O is 0.900 mol/Ls, what is the rate of reaction of CsHis? b)At what rate will o2 be reacting under...
Problem 2 A spring-loaded piston-cylinder device contains 1 kg of carbon dioxide that is initially at 100 kPa and 25°C (State 1). Heat is added until the gas reaches 800°C, at which point the pressure is 300 kPa (State 2) (a) Determine the boundary work (kJ) done by the CO2. Assume the spring is linear. (b) Determine the amount of heat transfer (kJ) into the CO2. Data for CO2: R = 0.1889 kJ/(kg K), Cpo = 0.846 kJ/(kg K), Cvo...
can someone explain which formula was used to solve this
problem please. thank you
An 80 kg human body uses about 14 MJ of energy per day. What is the average power of the human body? 162 W A B 591 W 9.72KW D 583 kW
Can someone explain how to do this.
11. A certain reaction achieves equilibrium at 742 C. AH for the reaction at (Name - Printed) temperature is -50.8 kJ/mol. Calculate AS and also calculate the free energy change, ΔG。, at standard conditions (25 ℃, 1 atm, and all solutes at 1 M). Assume that AH and AS are independent of temperature. a) Calculate 4S. 742℃+273-7015K KJ/mol 015L b) Calculate AG 4G-t50.BKJ/moi)-wi'k)(0.05kilmoi)毧 46 (-50.8KJmo(0.15 KJmo) AG -101.55 KJImo Consider the reaction of...
Could someone please guide me through these problems? Correct
answers are highlighted.
9. Calculate the total vapor pressure (in Torr) at 50°C of an ideal solution of methanol (CH3OH) and propanol (C3H7OH) in which the mass % concentration of methanol is 58.0%. The vapor pressure at 50°C of methanol is 416.3 Torr and that of propanol is 179.3 Torr. d) 315.8 b) 278.8 a) 350.3 c) 300.3 e) 239.8 12. The standard enthalpy of combustion of acetic acid, CH3COOH (1),...
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