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b. Calculate the mass of CO2 produced by the combustion of 1 kg of carbon. Give...
Question 3 [Total Marks- 25 Biomass, Bioenergy and Biomass Supply Chain a) Briefly describe how to use a bomb calorimeter to measure the higher heating value (HHV of a biomass fuel. 5 Marks] The data for proximate analysis and ultimate analysis of a woody biomass are given in Table 1. The higher heating value (HHV, MJ/kg) of the fuel can be estimated using the equation below: b) HHV-19.914-0.2324 x Ash, where Ash is the weight percentage on dry biomass basis....
Answer the following questions regarding heats of fomation and combustion: The balanced equation for the combustion of salicylic acid is given to be: C7H6O3(s) + 7O2(g) --> 7CO2(g) + 3H2O(l) A. Calculate the heat of formation () of salicylic acid with the following data provided: For H2O(l): For CO2(g): B. Calculate the heat of formation of benzoic acid using the data for its heat of combustion obtained from the literature. Assume 1% accuracy for any thermochemical data used. C. A...
i dont know why 101.292 is answer. The answer I thought was 26.7x3.67x60x60x24x365=3.09 G tonne Assume that all of the United States' annual electricity requirement of 3 X 10'kWh is produced by coal-fired generating stations operating at a net overall efficiency of 40%. (a) How many tonnes of coal are burned per second? (Assume the coal is all bituminous) (b) Assuming that coal is 100% carbon, how many tonnes of Co, will be pro- duced each year? 449 (b) Write...
If the heat of combustion of the wood is 9.5 MJ kg–1 and the wood-fired power station will generate electricity with an efficiency of 29%, calculate how much electrical power can be produced (in units of MW) if the station burns 12 tonnes of wood per hour. Give your final answer to 1 decimal place.
In the first several questions we will walk through the steps of a typical grams to moles--> moles to moles --> moles to grams calculation. Here is the overall question. We will estimate answers to each subsequent step, but by the time you've done these questions you should have a good sense of how to do these problems. How much SO2 in metric tonnes is produced by one day of coal burning at the Rawhide Power Plant north of Wellington,...
Compare the mass of carbon dioxide produced per Joule of energy released from combustion of one gram of coal (anthracite), one gram of gasoline (assume 100% n-octane), and one gram of natural gas (assume 100% methane) respectively. Clearly show all balanced equations and all work. Use Wikipedia’s Heat of Combustion Table to access heat of combustion (MJ/kg) data. Divide each of your three ratios by the lowest ratio of the three to get relative rankings
Question 4 (15 Marks) A. Using the power law, calculate the wind speed at 30 m if the wind speed at 50 m is 8.5 m/s. Assume the surface roughness exponent of the site is a 0.1. (3 Marks) B. What is the performance behaviour of Lithium -ion battery interms of discharge current and depth of discharge? (3 Marks) C. Explain the origin and features of Earth's tidal resources? (3 Marks) D. The data for a proposed short rotation coppice...
QUESTION 3 (25 MARKS In a power plant boiler, coal which has an ultimate analysis by mass of 39.25 percent C, 6.93 percent H2, 41.11 percent 02, 0.72 percent N2, 0.79 percent S, and 11.20 percent Ash (non-combustibles) is burned steadily with 40% excess air. Assuming the combustion process as complete and treating the air as dry air, determine: (a) The balanced combustion equation for the combustion process. [6 Marks] (6) The Air-Fuel ratio [6 Marks) (c) The heat transfer...
Part A and Part B for reference: Chapter 18 <Chapter 18 Byproducts of Burning Fossil Fuels © 10 0f 15 > Review Constants Periodic Table Coal is a fossil fuel made primarily of carbon, but it also contains sulfur among other elements. Submit Previous Answers When carbon, C, burns in air, it reacts with oxygen, O2, to produce carbon dioxide, CO2 C(s) + O2(g) +CO2(g) Correct Since SO, readily forms sulfuric acid, H.SO, sulfur dioxide in the atmosphere leads to...
Please answer the 2 questions with part A and B. thank you in advance 1. part a and b 2. part B and C Review Constants enodic Table In 1986 an electrical power plant in Taylorsville, Georgia, burned 8,376,726 tons of coal, a national record at that time. Coal is a fossil fuel made primarily of carbon, but it also contains sulfur among other elements. When carbon, C, burns in air, it reacts with oxygen, O2, to produce carbon dioxide,...