How many kilowatt-hours of energy are necessary

Assignment Help Chemistry
Reference no: EM13160255

A room contains 45 kg of air.How many kilowatt-hours of energy are necessary to heat the air in the house from 5 C to 29 C? The heat capacity of air is 1.03 J/ g C.

Reference no: EM13160255

Questions Cloud

Which is the epistatic phenotype : Could someone please help me with this homework problem? I'mthinking that the white eye gene and the red eye gene operates byepistasis.
Calculate the optimal amounts of y and z : Using the Lagrangean Multiplier method, determine how should the hardwood be allocated between the two lines of product so that total profit can be maximized. Also calculate the optimal amounts of Y and Z and total profit from each product line.
Concerns about our food source : In the United States, we are fortunate to have an abundant supply of food, and much of this is due to our agricultural technology. However, there are many concerns about our food source
Calculations federal withholding : Calculate the payroll for the end of February. Include in your calculations federal withholding, FICA, and FUTA. Assume that Jones Company received the maximum credit for state unemployment taxes.
How many kilowatt-hours of energy are necessary : A room contains 45 kg of air.How many kilowatt-hours of energy are necessary to heat the air in the house from 5 C to 29 C? The heat capacity of air is 1.03 J/ g C.
Create a circle class : create acircle class, which has one field, the radius. the class should contains two constructors: a no-argument constructor that set the radius to zero, and a constructor that takes a parameter to set the radius.
Should the ceo at plain truth cancel the audit and rely : Should the CEO at Plain Truth cancel the audit and rely on a brief year-end summary from each sales account manager? Why?
What are dna binding proteins : What are DNA binding proteins? DNA binding motifs?
Explain any additional variables that may improve : indicating how it will influence your decision to open the pizza business in your town or community. Explain any additional variables that may improve the coefficient of determination.

Reviews

Write a Review

Chemistry Questions & Answers

  Compute the temperature a star must have for the peak

Using Wien's law, calculate the temperature a star must have for the peak wavelength of its blackbody curve to equal this value.

  Compute delta for oxalic acid

Calculate deltaS(Jmol^-1K^-1) for oxalic acid and delta S (Jmol^-1K^-1) for the combustion of one mole of oxalic acid.

  Explain in urea both nitrogen atoms are found to be planar

In most amines, the nitrogen atom is hybridized, with a pyramidal structure and bond angles close to 109 . In urea, both nitrogen atoms are found to be planar

  How much energy in kilojoules is required

How much energy in kilojoules is required to convert 100 mL of diethyl ether at its boiling point from liquid to vapor if its density is 0.7138 g/mL.

  The molecular weight of the unknown gas

A sample of oxygen gas () was found to effuse at a rate equal to three times that of an unknown gas. The molecular weight of the unknown gas is __________ g/mol.

  What mass of solid sodium formate must be added

what mass of solid sodium formate (of mw 68.01) must be added to 105 ml of 0.55 mol/l formic acid(HCOOH) to make a buffer solution having a ph of 3.96? ka=0.00018 for HCOOH

  Explain how does insulin promote glycogen synthesis

How does insulin promote glycogen synthesis in the liver? By binding to glycogen phosphorylase. By activating glycogen phosphorylase. By inhibiting glycogen synthase.

  Calculate the amount of heat needed

Calculate the amount of heat needed to boil benzene (C6H6), beginning from a temperature of 6.7 degrees celcius.

  How many grams of water are present

Suppose 1500 J of heat energy are put into a sample of liquid water at 25 degrees celsius, and the final temperature of the water is 75 degrees celsius. How many grams of water are present?

  Compute the temperature of the gas in degrees celsius

53.5 g of an ideal gas of molecular weight = 30.5 g/mol are confined at a pressure of 133 mmHg. The density of the gas is 0.228 g/L. Compute the temperature of the gas in degrees Celsius.

  Calculate the mole fractions of fe3+ and scn-

4.00 mL of 2.0E-3 M iron(III) nitrate solution is mixed with 5.00 mL of 2.0E-3 M potassium thiocyanate solution, 6.00 mL of 0.500 M nitric acid solution

  Calculate the pressure of gas

952 cm3 container of gas is exerting a pressure of 108 kpa while at a temperature of 48 degrees celsius. calculate the pressure of this same amount of gas in a 1236 cm3 at a temperature of 64 degrees celsius.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd