Sustainable Energy
2nd Edition
ISBN: 9781337551663
Author: DUNLAP, Richard A.
Publisher: Cengage,
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Chapter 1, Problem 16P
To determine
Find the lower heating value of ethanol.
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An insulated Thermos contains 110 cm3 of hot coffee at 83.0°C. You put in a 15.0 g ice cube at its melting point to cool the coffee. By
how many degrees has your coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though it were pure
water and neglect energy exchanges with the environment. The specific heat of water is 4186 J/kg-K. The latent heat of fusion is 333
kJ/kg. The density of water is 1.00 g/cm³.
Number
i
20
Units
C°
Calculate the amount of barium from Sodium sulphate in a liter. A 100 ml solution
of sodium sulphate (Na2SO4) is treated with solution of Barium chloride(BaC12).
The precipitate, then ignited and weighed. the precipitate(BaSO4) weight is 0.1
gm. Mol.Wt of BaSO4 233.42 gm/mol, At. Wt of barium= 56 gm/mol.
%3D
Liquid weighing 0.98 gram and containing 90% of carbon and 8% of hydrogen give the following result in the bomb calorimeter experiment amount of water taken in the calorimeter equal to 450 gram water equivalent of the calorimeter equal
to 450 gram rise in temperature of water equal to 1.8 degree centigrade if the latent heat of steam is 587 calorie per gram calculate the cross and net calorific value of the fuel
Chapter 1 Solutions
Sustainable Energy
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