C The Average Adult Human Burr x b Search results for 'Convert 3.2 x app.101edu.co mail YouTube Maps 1o Chem101 Update 国 Reading Question 3 of 23 Sub The average adult human burns 2.00 x 10 kcal per day in energy. What is this rate in kJ per hour ? MOUNT ADD FACTOR ANSWER RESET *( ) 60 4184 2.01 x 106 4.184 1.15 x 105 1 24 0.001 20.0 349 2.00 x 10 1000 kcal/day days kJ cal kJ/hr hr min kcal

C The Average Adult Human Burr x b Search results for 'Convert 3.2 x app.101edu.co mail YouTube Maps 1o Chem101 Update 国 Reading Question 3 of 23 Sub The average adult human burns 2.00 x 10 kcal per day in energy. What is this rate in kJ per hour ? MOUNT ADD FACTOR ANSWER RESET *( ) 60 4184 2.01 x 106 4.184 1.15 x 105 1 24 0.001 20.0 349 2.00 x 10 1000 kcal/day days kJ cal kJ/hr hr min kcal

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter8: Thermochemistry

Section: Chapter Questions

Problem 75QAP: Some solar-heated homes use large beds of rocks to store heat. (a) How much heat is absorbed by...

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Which is the least expensive source of energy in kilojoules per dollar: a box of breakfast cereal that weighs 32 ounces and costs $4.23, or a liter of isooctane (density, 0.69 19 g/mL) that costs $0.45? Compare the nutritional value of the cereal with the heat produced by combustion of the isooctane under standard conditions. A 1.0-ounce serving of the cereal provides 130 Calories.
Some solar-heated homes use large beds of rocks to store heat. (a) How much heat is absorbed by 100.0 kg of rocks if their temperature increases by 12C? (Assume that c=0.82J/gC.) (b) Assume that the rock pile has total surface area 2 m2. At maximum intensity near the earth's surface, solar power is about 170 watts/m2. (1watt=1J/s.) How many minutes will it take for solar power to produce the 12C increase in part (a)?
You have the six pieces of metal listed below, plus a beaker of water containing 3.00 102 g of water. The water temperature is 21.00 C. (a) In your first experiment you select one piece of metal and heat it to 100 C, and then select a second piece of metal and cool it to 10 C. Both pieces of metal are then placed in the beaker of water and the temperatures equilibrated. You want to select two pieces of metal to use, such that the final temperature of the water is as high as possible. What piece of metal will you heat? What piece of metal will you cool? What is the final temperature of the water? (b) The second experiment is done in the same way as the first. However, your goal now is to cause the temperature to change the least, that is, the final temperature should be as near to 21.00 C as possible. What piece of metal will you heat? What piece of metal will you cool? What is the final temperature of the water?
A Boeing 767-400ER traveling from Atalanta, Georgia (ATL) to Paris, France travels an average distance of 4394 miles. When carrying 283 passengers on this route, the efficiency recorded by the aircraft approaches 64.2 miles/gallon per passenger. What is the minimum quantity of fuel that 1.00gal = 3.78L?
Conver 121 kpa to psi 1 N = 0.22480894 lb 1kpa=1000N With these conversions and metric conversions
Consider the two spheres shown here, one made of silver andthe other of aluminum. (a) What is the mass of each spherein kg? (b) The force of gravity acting on an object is F = mg,where m is the mass of an object and g is the acceleration ofgravity (9.8 m/s2). How much work do you do on each sphereit you raise it from the floor to a height of 2.2 m? (c) Does theact of lifting the sphere off the ground increase the potentialenergy of the aluminum sphere by a larger, smaller, orsame amount as the silver sphere? (d) If you release thespheres simultaneously, they will have the same velocitywhen they hit the ground. Will they have the same kineticenergy? If not, which sphere will have more kinetic energy?
Consider the two spheres shown here, one made of silver andthe other of aluminum. (a) What is the mass of each spherein kg? (b) The force of gravity acting on an object is F = mg,where m is the mass of an object and g is the acceleration ofgravity (9.8 m/s2). How much work do you do on each sphereit you raise it from the floor to a height of 2.2 m? (c) Does theact of lifting the sphere off the ground increase the potentialenergy of the aluminum sphere by a larger, smaller, orsame amount as the silver sphere? (d) If you release thespheres simultaneously, they will have the same velocitywhen they hit the ground. Will they have the same kineticenergy? If not, which sphere will have more kinetic energy?[Section 1.4]
q 8 a https://cxp.cengage.com/contentservice/assets/owms01h/references/chemtables/gen_chem/eo.html table
A piece of Aluminum (c Al =0.902J/(gv^ C) with a mass of 250,0 g is at an initial temperature of 5.00 °CIf 24.1 is supplied to warm the Alwhat is its final temperature ? Express your answer with the correct significant figures.
Suppose that to a mug containing 125 mL of water at a temperature of 90°C we are 165 mL of water at an unknown temperature and makes the contents well. What is that unknown temperature is the final temperature of water in the mug is 58.3°C consider that the mug is well insulate and that the water density which is 1.00 g over milliliters is independent of that temperature?
4.04 x102 s= ? us (microseconds) show work, report correct sig figs and units
You serve a volleyball with mass of 2.6kg. The ball leaves your hand with a velocity of 5 m/s, how much kinetic energy does the ball have when it leaves your hand?

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