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A waste heat exchanger is used to absorb the energy from the complete combustion of hydrogen sulfide gas. What volume of water undergoing a temperature change of 52 degrees Celsius is required to absorb all of the energy from the burning of 12 kg of hydrogen sulfide? * 0.85 mL 0.84 L 840 g 0.85 g please explain and give correct answer

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Review the table of energy use versus land resources below. The perpetual column refers to the same land used repeatedly for the same energy resource. One-time use means new land would be needed to provide the resource again. Reclamation refers to the restorative processes necessary to return the land to what it once was Energy Use Vs. Land Resources Acres of land Land use Electricity over 75 years (GWh) Acres of land (perpetual) per year Reclamation options (One time use) Nuclear (mining) 16.66 16.66 Coal (mining) 11.11 11.11 Biomass 0.40 18 Solar 25.00 8.33 Wind 2.90 26 Hydropower 2.50 30 According to the data, which of the following energy sources uses land least efficiently compared to its energy output? O Solar energy O Wind energy O Hydropower O Coal energy Very high cost (radioactive) Costly (<1% reclaimed) Replant trees/crops Remove or replace panels and dual use of land Remove or replace turbines and dual use of land Drain dam + restoration

take in mind the guide (appendix b)

please answer all 4 questions, please

Part A How many kWh of energy does a 600-W toaster use in the morning if it is in operation for a total of 4.0 min ? Express your answer to two significant figures and include the appropriate units. Energy = kWh Submit Request Answer Part B At a cost of 9.0 cents/kWh, estimate how much this would add to your monthly electric energy bill if you made toast four mornings per week (16 times per month) Express your answer using two significant figures. VO AE Cost = cents/month Submit Request Answer

Figure 40 Petroleum 30 Natural gas 20 Coal Nuclear electric 10 power Hydroelectric power Wood 1800 1825 1850 1875 1900 1925 1950 1975 2000 Year Since 1800, the main sources of energy have been fossil fuels, with other sources contributing less than 20% of the total. Chapter 3, Question 49 Your answer is incorrect. Using information in the figure above, calculate the total world energy consumption in 1975. i ! x 10 ! kJ Energy consuption by source, 108 kJ/yr

5. The car you have been driving has a posted fuel consumption of 10.0 L/100 km (city) and 7.1 L/100 km (highway) according to the EnerGuide information. Overall, your actual fuel consumption has averaged 10.5 L/100 km. a) Is this better or worse than the posted fuel consumption? b) Provide three reasons why your actual fuel consumption may be different from the posted consumption. c) List three ways in which you could improve your fuel consumption (other than buying a new carl).

HELP pls.

211e14b70488393394d50bcd03f6a#10001 I Review | Constants | Periodic Table Part A The density of liquid oxygen at its boiling point is 1.14 kg/L , and its heat of vaporization is 213 kJ/kg How much energy in joules would be absorbed by 4.0 L of liquid oxygen as it vaporized? Express your answer to two significant figures and include the appropriate units. > View Available Hint(s) Value Units Submit Part B Water's heat of fusion is 80. cal/g, and its specific heat is 1.0 - Some velomobile seats have been designed to hold ice packs inside their cushions. If you started a ride with ice packs that held 1500 g of frozen water at 0 C, and the temperature of the water at the end of the ride was 32 C how many calories of heat energy were absorbed? Express your answer to two significant figures and include the appropriate units. P Pearson on Inc. All rights reserved. Terms of Use | Privacy Policy Permissions Contact Us | INTL O V O 3:48 aern