A coal fired power station converts one third of the coal's energy into electricity and the other two thirds of the energy content of the fuel is rejected to the environment as waste heat. The electrical output of the plant is 1000 MW. About 15% of the waste heat goes up the smokestack (lost) and the other 85% is taken away by cooling water that is drawn from a nearby river. The river has a volumetric flow rate of 100 m^3/s and a temperature of 20 degree C.

a. If you assume that this coal has an empirical formula C_5H_4 and the reaction is a complete combustion, what is the total mass of coal required per day for the current power output assuming the plant runs for 16 hrs per day? The energy density of coal is 35 times 10^6 J/kg. b. What is the volume of CO_2 produced every day by the plant?
c. What would be the river temperature (in degree C) just after it receives the heated cooling water?

Select the correct answer. given: 2libr + ba → babr2 + 2li in this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced? a. 1.18 mol b. 2.37 mol c. 4.73 mol d. 16.4 mol e. 32.9 mol

How is the solubility of a carbon dioxide gas in water increase?

Activity two: just lemons, inc. production here's a one-batch sample of just lemons lemonade production. determine the percent yield and amount of leftover ingredients for lemonade production and place your answers in the data chart. hint: complete stoichiometry calculations for each ingredient to determine the theoretical yield. complete a limiting reactant-to-excess reactant calculation for both excess ingredients. water sugar lemon juice lemonade percent yield leftover ingredients 946.36 g 196.86 g 193.37 g 2050.25 g 89% just lemons lemonade recipe equation: 2 water + sugar + lemon juice = 4 lemonade mole conversion factors: 1 mole of water = 1 cup = 236.59 g 1 mole of sugar = 1 cup = 225 g 1 mole of lemon juice = 1 cup = 257.83 g 1 mole of lemonade = 1 cup = 719.42 g show your calculations below. analysis questions 1. based on taste observations only, which ingredients were in excess in the lemonade samples in activity one? in activity one the excess substances for each sample were the water and sugar. 2. based on the data in activity two, which excess ingredients are affecting the taste of the lemonade in the sample batch? 3. what can just lemons, inc. do during production to reduce the amount of excess ingredients and improve the taste of their lemonade? 4. try to reduce the amount of leftover ingredients by changing the amount of one, two, or all three starting ingredients. show your stoichiometric calculations below. 5. during factory inspection, just lemons, inc. discovered that a water valve to the lemonade mixing station was not functioning. once they repair it, more water will enter the mixing station. from what you know about the limiting and excess ingredients for current lemonade production, what advice would you give engineers about the upcoming increase in water?