Answered: 343 CalCal to kilowatt-hours Express…

Science

Chemistry

343 CalCal to kilowatt-hours Express your answer using three significant figures.

Chemistry In Focus

7th Edition

ISBN:9781337399692

Author:Tro, Nivaldo J.

Publisher:Tro, Nivaldo J.

Chapter9: Energy For Today

Section: Chapter Questions

Problem 34E

See similar textbooks

Related questions

Q: How much ammonia, in grams, can be turned into gas with 65.0Kj of energy added to it?

Q: 54. Perform each conversion. (a) 345 Cal to kilowatt-hours (b) 23 J to calories (c) 5.7 × 10° J to…

A: Hi, since you have posted questions with multiple subparts we will answer first three subparts for…

Q: A typical candy bar weighs about 2 oz (1.00 oz = 28.4 g).(a) Assuming that a candy bar is 100% sugar…

A: a.) Given: Weight of candy bar is 2 oz. 1.0 g sugar is equivalent to 4.0 calorie energy.…

Q: An adult eats food whose nutritional energy totals approximately 2100 CalCal per day. The adult…

Q: How much heat in calories does it take to raise the temperature of 5 grams of water from 22 C to 38…

A: Specific heat capacity of water is 4.18

Q: How many times more kinetic energy does the dump truck have than the car?

A: Given: Mass of sub compact car =1.6×103 Kg Mass of dump truck =1.70×104 Kg Speed of both truck and…

Q: In 2008 the approximate energy consumption for the entire population of earth for an entire year was…

A: The energy consumption for the entire population of earth is 4.74×1020Joules. The energy of the…

Q: A 65 kg person walking 6.5 km/hr requires 1390 kJ of energy per hour. How much further does he have…

Q: What is the volume of ethanol required to heat 200.0g of water by 10.0 celsius? The density of…

A: Note: Thank you for question. Since the Heat combustion of ethanol and Specific heat of water is not…

Q: How much energy is needed to change the temperature of 39 g of water from 10.0 °C to 95.0 °C?

A: Since water remains in liquid form from 10°C to 95°C . Heat required, Q = mcp(l) ∆T ,where m is the…

Q: Part C 2.64x103 kJ to kW h Express the value in kilowatt-hours to three significant figures. ν ΑΣφ…

Q: The energy needed to keep a 75-watt light bulb burning for1.0 h is 270 kJ. Calculate the energy…

A: The energy required to keep the light bulb burning for 3.0 h in each of the following energy units…

Q: 1621 kg car is traveling down the road at 89.4 km/h. While traveling at this rate of speed, what is…

A: The question is based on the concept of kinetic energy. the amount of energy possessed by a molecule…

Q: f a television requires 150 kj/h to run, how many hours can the television run on the energy…

A: The energy given by gasoline is 1 gal. The energy required by television in one hour is 150 kJ.

Q: A coffee cup calorimeter containing 200 g of water at 24°C had a 200 g sample of metal heated to…

A: When one hot and one cold element is mixed together then average temperature is reached .

Q: Brad tries out a weight-loss plan that involves repeatedly lifting a 41.4-kg barbell from the floor…

Q: A metal radiator is made from 13.96 kg of iron. The specific heat of iron is 0.449 J/g °C. How much…

A: Given;

Q: 3.23×103 kJ to kW⋅h Express the value in kilowatt-hours to three significant figures.

A: Joule (J) is the unit of work done or energy. Kilojoule (KJ) is 1000 times of Joule. Watt or…

Q: A 15.7 g aluminum block is warmed to 53.2 deg C and plunged into an insulated beaker containing 32.5…

A: Given that,Mass of Aluminium is 15.7 gMass of water is 32.5 gInitial temperature of Aluminium is…

Q: An average home in Colorado requires 20. GJ of heat per month. How many grams of natural gas…

A: Given, Amount of heat = 20 GJ = 20 x 109 J (since, 1 GJ = 1 x 109 J) Enthalpy of reaction (△H°rxn)…

Q: If the monthly electricity consumption of a household is 6,619 kWh, what is this consumption…

A: 1 kWh = 3600 kJ

Q: A horse does 860 J of work in 420 seconds while pulling a wagon. What is the power output of the…

A: The work done on the system is obtained by measuring the product of force and the distance. The work…

Q: How many kilojoules of heat are required to raise the temperature of 178 g of aluminum from 13.0˚C…

Q: 6 kWhkWh to joules Express your answer using two significant figures. Convert 229 cal to…

A: In this question, we need to convert the given value from one unit to another unit using the…

Q: A runner burns 2.56x103 kj during a five-mile run. How manny nutritional Calories did the runner…

A: Nutritional Calorie is an energy unit and defined as the amount of energy to heat 1 kilogram of…

Q: How much work is done by an Olympic bicyclist who accelerates from 5.0 m/s to 10.0 m/s? The mass of…

Q: A 68.0 kg person uses 214 kJ of energy to walk 1.00 km. This energy comes from “burning" glucose…

Q: Energy sources that are replenished and therefore sustainable are called as O Conventional energgy…

A: The question is based on the concept of environmental Chemistry. There are several sources of energy…

Q: A metal radiator is made from 25.07 kg of iron. The specific heat of iron is 0.449 J/g °C. How much…

A: The mass of iron metal is = 25.07 kg The heat capacity of iron metal is = 0.449 J/goC Increase in…

Q: piece of metal was placed into a 75.00 grams of water. the temperature of the water increased from…

Q: The energy needed to keep a 75 - watt lightbulb burning for 1.0 hr is 270kJ. Calculate the energy…

Q: Use data from the hint to compute AG° for the following reaction. 3N2H4(1) + 403(g) → 6NO(g) +…

A: v

Q: Q1:- Find the external work done by the system in kcal, when 10 kcal of heat is supplied to the…

A: Given: The amount of heat supplied to the system = 10 kcal The increase in internal energy = 3200 J…

Q: net change in the internal energy

Q: How much heat is needed to raise the temperature of a 2.5 g piece of copper wire from 20. °C to 80.…

A: When the temperature rise of a 1 g of substance takes place by 1°C, some amount of heat is required…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.75 kg sample…

A: Given: Mass of sample = 1.75 kg Initial temperature = 22.2oC Final temperature = 45.4oC Heat…

Q: How much heat, in joules and calories, is needed to heat up 253 mL of water from 13.3 °C to 85.2 °C?…

A: Given : Volume of water = 253 mL Density of water = 1.00 g/mL Initial temperature of water = 13.3 °C…

Q: Suppose that a person eats a diet of 2383 Calories per day. Convert this energy into kilowatt-hours.

A: In generally power is given by kWh so the calories of energy is cavorted as kWh by below,

Q: How many grams of carbon are present if it requires 57.5kj of energy to heat a sample from 20.0 to…

A: Specific heat: Heat requires for system to raise temperature of substance by 1 degree Celsius or 1…

Q: How much energy is required to raise the temperature of 200.0g of water from 25.0°C to 50.0°C

A: Heat of reaction is difference of energy of product and energy of Reactant. If heat of reaction is…

Q: A water heater contains 60 gal of water. How many kilowatt-hours of energy are necessary to heat the…

A: Conversion of the units of volume from gallon to mL: The mass of water can be calculated as given…

Q: 8.0-kg rock is dropped from a height of 3.0 m. At what height is the rock's kinetic energy twice its…

A: As we know potential energy =mgh

Q: change in internal energy

Q: How much energy is required to raise the temperature of 11.0 grams of solid copper from 23.1 °C to…

A: Energy required to raise the temperature of solid copper can be calculated by using the formula: Q…

Q: When an electrical appliance whose power usage is X watts is run for Y seconds, it uses X × Y joules…

A: One joule of energy is equal to the product of one watt of energy use in one second. 1J=1watt×1sec =…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.46 kg sample…

A: Specific heat--->> The specific heat capacity of a substance is the amount of energy required…

Q: As the caterpillar climbs, its potential energy is increasing, what source of energy has been used…

A: As the Caterpillar climbs, the potential energy is increasing. The energy source that has been used…

Question

343 CalCal to kilowatt-hours

Express your answer using three significant figures.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Most people find waterbeds uncomfortable unless the water temperature is maintained at about 85 F. Unless it is heated, a waterbed that contains 892 L of water cools from 85 F to 72 F in 24 hours. Estimate the amount of electrical energy required over 24 hours, in kWh, to keep the bed from cooling. Note that 1 kilowatt-hour (kWh) = 3.6106 J, and assume that the density of water is 1.0 g/mL (independent of temperature). What other assumptions did you make? How did they affect your calculated result (i.e., were they likely to yield positive or negative errors)?
9.71 In recent years, the notion of a “smart grid” has emerged. Do a web search and research the smart grid concept. How would the smart grid differ from the traditional grid?
Assume that electricity costs 15 cents per kilowatt- hour. Calculate the monthly cost of operating each of the following: a 100 W light bulb, 5 h/day a 600 W refrigerator, 24 h/day a 12,000 W electric range, 1 h/day a 1000 W toaster, 10 min/day
If it takes 654 J of energy to warm a 5.51-g sample of water, how much energy would be required to warm 55.1 g of water by the same amount?
How do u find this conversion. Show work. 89MM TO INCHES
6.40×103 kJ to kW⋅h Express the value in kilowatt-hours to three significant figures.
A 2.5 kg sample of copper at 24.1 degrees C experiences a change in temperature to 19.7 degrees C. How much energy is involved? Did the copper gain or lose energy?
If a battery releases 566.8 J of energy and 201 J are used for work, how much energy is released as heat (in joules)? Report your answer to 1 decimal place. Enter your answer as a positive number (even if you calculate it as a negative number).