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).

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).

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter9: Energy And Chemistry

Section: Chapter Questions

Problem 9.94PAE

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older. Or import from another browser. Import favorites [Review Topics] [References] Some fuel-efficient hybrid cars are rated at 55.0 miles per gallon of gasoline. Calculate the energy used to drive 9.00 miles if gasoline produces 48.0 kJ/g and the density of gasoline is 0.737 g/cm. (1.00 gal = 3.785 L) Energy = kJ %3D Submit Answer Retry Entire Group 3 more group attempts remaining 640 PM
Given the following data C2 H4 (9) + 302 (9) → 2 CO2(9) + 2H,0(1) 2C2 H6 (9) + 702(9) → 4 CO2(9) + 6H2O(1) 2H2 (g) + O2(9) → 2H,O(1) AH = -1411.0 kJ AH = -3119.8 kJ AH = -571.7 kJ calculate A H for the reaction C,H4 (9) + H2 (9) → C,H6 (g) ΔΗ= kJ Submit Answer Try Another Version 2 item attempts remaining
(a) Is it true that 26.3 mpg gasoline translates to 319 g CO:/mi? i. Convert mpg (miles per gallon) to miles per kg (of gasoline) using the density of gasoline ii. Convert kg of gasoline to kg of C assuming the overall formula for gasoline is CıH1a5 ii. Convert kg of C to kg of CO2 iv. Now finally compute g CO:/mi corresponding to 26.3 mpg and compare to 319 g CO2/mi
1. Most of the people killed in workplace fires are not killed by the flames directly, but indirectly by smoke inhalation. True or False *
Chicken with Cp = 0.8 BTU/lboF, is to be cooked from 30 to 120oF.a. If the chicken weighs 5 lb, how many BTU’s of heat are required?b. Convert the number of BTU’s of heat in watt-hours.c. If the chicken is heated in a microwave oven having an output of 150 watts, how long will it take to cook the chicken?
Kw (at 0 K) is 2.00E-01. What is the [H3O+]? Teacher gave the answer of 4.47E-01 but I don't understand how he got that..... what formula? I'm figuring I change from Kelvin to Celsius but then what?
Question 12 of 41 > A 1599 kg car is traveling down the road at 95.4 km/h. While traveling at this rate of speed, what is the kinetic energy of this vehicle in kilojoules? E = kJ ムtv MacBook Air 80 888 DII DD F4 * F9 F5 F6 F8 F10 F11 F12 & 5 6 7 8. 9. %3D delete
(Would like answers for part B ONLY please-need info from part a to answer. I already solved part a) 1)Energy Efficiency at Home: Suppose you have two kettles – a plug-in electrickettle and a stovetop kettle. The electric kettle uses electricity from a natural gas fired powerplant, while you boil water in your stovetop kettle on a natural gas burner. a)Based on the following information, which of these kettles demonstrates a higher energy efficiency (i.e., which is more efficient at using energy from fuel to heat water)? Please calculate the efficiencies of each kettle and express answers as percentages. -The natural gas power plant converts chemical energy of the natural gas to electrical energy with 58% efficiency. -High-voltage power lines from the power plant to your house convey electricity with 92% efficiency. -The electric kettle converts electrical energy to thermal energy in the water with 85% efficiency (the other 15% heats up the kettle itself). -The stove burner converts…
1. Given the data below: CH, (g)+2O, (g) à CO, (g)+2H,O (I) CH, (g) + H₂(g) à CH, (g) 2 H, (g) + O₂(g) à 2 H₂O (1) 2C_H_ (g)+7O, (g)à4 CO,(g)+6H_O(I) Calculate the DHⓇ for the reaction 2 CH₂ (g) à CH (g) + H₂ (g) DH = -890.3 kJ DH = -136.3 kJ DH = -571.6 kJ DH = -3120.8 kJ
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
Calorimetry of Metals Lab Set up a boiling water bath of 250 mL of water in a 400L beaker at 325 degrees C. Placed a test tube of 13.88g of aluminum into boiling water. Boiled for 20 minutes and reached a temp of 99.0 degrees C. Set up a "coffee-cup" calorimeter with a volume of 50mL of water. Assume the water has a density of 0.997 g/mL. Initial temp of 50mL of water is 22.2 degrees C. Dumped the test tube of heated aluminum into calorimeter. Final temp of 50mL of water is 26.4 degrees C. Calculate the specific heat of the aluminum. Use the specific heat of water as 4.184 J/g*degrees C.
Given the following data C,H,(9) + 30,(9) → 2 CO,(g) + 2H,0(1) 2C,H6 (g) + 702(g) → 4 CO2(g) + 6H2O(1) AH=-3119.8 kJ 2H,(g) + O2(9) → 2H,O(1) AH= -1411.0 kJ AH=-571.7 kJ calculate A H for the reaction C2H4 (9) + H2 (g) → C,H6 (g) AH = kJ