In 2008, electric power plants in the United States consumed about 1.14 x 1011 kg of natural gas. Natural gas is mostly methane, CH4, so we can approximate the combustion reaction generating the energy by the equation: CH4 (g) + 2O2(g) ⟶ 2H2O (g) + CO2 (g) How many kilograms of CO2 were released into the atmosphere from these power plants in 2008?
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In 2008, electric power plants in the United States consumed about 1.14 x 1011 kg of...
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 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)...
Assume that in 2010 the United States will need 2.0×1012 watts of electric power produced by thousands of 1000 MW power plants. These will almost certainly be powered by either coal or nuclear reactors. If all the energy is provided by U-235 burning reactors, how many tonnes of U-235 will be needed annually? NOTE: Rather than using the exact energy from problem 1, please assume that fission of U-235 releases a "rounded" 8.E13 J/kg (Assume a realistic efficiency of 45...