The combustion of 45.0 g of methane (natural gas) releases 2498 kJ of heat energy. How much energy in kilocalories (kcal) would combustion of 0.450 ounces of methane release?

Q: 110. A portable electric water heater transfers 255 watts (W) of power to 5.5 L of water, where 1 W…

A: The energy of the electric water heater is the heat produced during the change of temperature from…

Q: The average adult human burns 2.00 × 10³ kcal per day in energy. What is this rate in kJ per hour?

A: The unit conversions are  1 kcal = 4.184 kJ To convert kcal into kJ , we need to multiply kcal with…

Q: A carpet sells for $20.99 per square yard. What is the price of the carpet per square meter? $ /m²…

A: Given: Rate of carpet = $ 20.99 /yard2.

Q: A particular beer is 6.50% ethanol by volume (C2H6O). if a single bottle of beer contains 750. ML of…

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Q: 8. A dosage of fentanyl (used in epidurals for childbirth) is 0.85 µg/kg of body weight. If you give…

A: A dosage of fentanyl (used in epidurals for childbirth) is 0.85 µg/kg of body weight. If 0.0645 mg…

Q: How much lead shot needs to be heated to 389 degrees C when placed in 78.6 g water that started at…

A: When any hot substance gets contacted with cool substance, the heat starts moving to cool substance…

Q: If a wheelchair-marathon racer moving at 13.1 miles per hour expends energy at a rate of 655…

A: Given ;   Racer move=13.1 miles/hour  Expands energy=655 cal/hour  Energy required to complete…

Q: A hybrid SUV consumes fuel at a rate of 12.8 km/L. How many miles can the car travel on 22.5 gallons…

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Q: 6.) What is the ideal body weight of an individual which is 5 feet tall? a. 170kg b. 162 kg c. 140kg…

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Q: The goose has a mass of 19.5 lb (pounds) and is flying at 9.90 miles/h (miles per hour). What is the…

A: Given ,             Mass of the goose (m) = 19.5 lb (pounds)                            Velocity…

Q: You are renting a car and you wish to travel a distance of 850. miles. If the car has a mileage of…

A: Given: Distance to be travelled = 850 miles Mileage of car = 10.1 km/L To calculate: The Gallons of…

Q: 120. A hybrid SUV consumes fuel at a rate of 12.8 km/L. Howmany miles can the car travel on 22.5 gal…

A: Rate of the fuel is 12.8 km/L. This shows that SUV consumes 12.8 km with one liter.

Q: How many minutes will it take to walk 90.6 feet at a rate of 40.0 meters per minute

A:

Q: A household receives a $145 electricity bill. The cost of electricity is $0.120/kWh. How much…

A: Given, total electricity bill = $145           cost of electricity = $0.120/kWh Now, total energy…

Q: If your front lawn is 25.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates…

A: Lawn is rectangular which has width = 25.0feet; length = 20.0feet  so Area = length * width…

Q: Prior to hosting an international soccer match, the local soccer club needs to replace the artifical…

A: Given : Length of field = 0.101 Km Width of field = 0.065 Km And cost of turf per m2 = $ 7.00 per m2…

Q: A car is traveling at a speed of 65 mi/h. How long does it take to cover a distance of 235m?

A: Given, speed = 65miles per hour distance = 235 meters

Q: On a trip of 834 miles, an automobile consumed 35.5 gallons of gasoline costing $4.25 per gallon.…

A: Given: Miles travelled on a trip = 834 miles Gasoline consumed = 35.5 gallon Cost per gallon = $4.25

Q: Part C If distilled water sells in a grocery store for $1.32 per gal what percentage of the sales…

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Q: The density of aluminum is 2.7 g/mL. How many liters would 12.8 pounds of aluminum take up?

A: Given, Density of aluminium = 2.7 g/mL Note: 1 pound = 453.592 g Mass of aluminium = 12.8 pounds =…

Q: 2. A small car has a fuel efficiency of 34.3 miles per gallon. What is this fuel efficiency in…

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Q: What kind of energy is chemical energy? In what way is an elevated weight similar to a tank of…

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Q: If your car can travel 70.5 mi on 3 gal of gasoline, how many miles can the car travel on 28 gal of…

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Q: If your front lawn is 16.0 feet wide and 20.0 feet long, and each square foot of lawn…

A: Since front lawn dimension given as –Width =16 feetsLength=20feetsSo area of lawn = width ×length

Q: A subcompact car with a mass of 1.60×103 kg and a loaded dump truck with a mass of 1.60×104 kg are…

A: Since ,         kinetic energy KE=12mv2where ,           m=mass of moving particle…

Q: While being driven from Philadelphia to Atlanta, a distance of about 1250 km, a 2014 Lamborghini…

A: Fuel economy is the relationship between the distance travelled by vehicle and the amount of fuel…

Q: At what temperature would 250 mL of water boil? 1000 mL? Is the boiling point an intensive or…

A: The temperature at which a substance in liquid state changes into a gas is called boiling point. The…

Q: is cutting a cake a physical or chemical reaction?

A: Physical change: a change after which nothing new is created and not old one is destroyed.

Q: How many Calories are in 4406 J? Round to two decimal places.

A: The magnitude of a quantity in one unit can be converted to the other unit by addition, subtraction,…

Q: The average adult human burns 2.00 × 10³ kcal per day in energy. What is this rate in kJ per hour?

A: Given, energy burns by human in a day=2×103 kcal  In a day, there are 24 hours.  In 1 hour,energy…

Q: A water heater contains 54 gal of water. How many kilowatt-hours of energy are necessary to heat the…

A: Step 1-We have to calculate the value of energy in kilowatt hours necessary to heat the given water…

Q: A 12-oz vanilla milkshake at a fast-food restaurant contains547 Calories. What quantity of energy is…

A: 1 calorie = 4.2 joules

Q: The energy available from the world’s total petroleum reserveis estimated at 2.0 3 1022 J. Convert…

A: The energy available from the world’s total petroleum reserve is estimated at 2.0 X 1022 J. Convert…

Q: 1. A hot tub is filled with 570 gal of water a. What is the volume of water, in liters, in the tub?…

A: (a)Volume of water (in Liters) is calculated as follows,

Q: If a 3.25 L sample of pure glycerol has a mass of 4.10×10^3 g -what is the density of glycerol in…

A:

Q: The pretzels in a bag of pretzels have a mass of 238.5g and costs $1.49. There are 18 pretzels in…

A: mass of pretzel bag = 238.5 gCost of pretzel bag   = $ 1.49No of pretzels in 1 bag = 18

Q: In which state of matter do the particles of a chemical have the highest kinetic energy?

A: The state of matter in which the particles will be packed loosely will have maximum movement of the…

Q: your front lawn is 24.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1150…

A:

Q: 5. A technologist collected the following data for their Class A volumetric flask: Table 1:…

A:

Q: If 20.0 Cal make an ounce, how many ounces of formula should a baby drink per day if the energy…

A: Given 1 ounce gives = 20.0 Cal energy

Q: You are renting a car which is reported to achieve 12.1 km/L. How many miles will you be able to…

A: Conversion of 12.1 kilometer per liter to mile per gallon:

Q: Part C If distilled water sells in a grocery store for $1.19 per gal. what peroentage of the sales…

A:

Q: HoLw many From the Sun to reach Earth? (The minutes does it take light distcince From the Sun to…

A: Given,            distance from sun to earth = 93 million miles            speed of light = 3.00 x…

Q: Prior to hosting an international soccer match, the local soccer club needs to replace the artifical…

A: Given: Length of the field = 0.100 km Width of the field = 0.074 km  Cost of grass turf =$9.00 / m2

Q: If a car that gets 30.1 MPG travels at 36 miles per hour for 155.0 minutes, how many gallons of…

A:

Q: How many kilocalories are lost when 580g of water cools from 67 degrees celsius to 22 degrees…

A: Given : Mass of water = 580 g Initial temperature of water = 67 oC And final temperature of water =…

Q: What is that temperature in degrees Celsius?

A: Given :- temperature  = 113oF  To calculate :- temperature in oC

Q: Which of the following objects has the greatest kinetic energy?a 1,000-kg carmoving at 50 km/h

A: The given data: Mass, m= 1000 Kg  Velocity, v = 50 km/hr