Calculate the amount of heat needed to boil 146. g of water (H,0), beginning from a temperature of 20.1 °C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol.
Calculate the amount of heat needed to boil 146. g of water (H,0), beginning from a temperature of 20.1 °C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol.
Introduction to General, Organic and Biochemistry
11th Edition
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Chapter1: Matter, Energy, And Measurement
Section: Chapter Questions
Problem 1.91P: 1-91 In calculating the specific heat of a substance, the following data are used: mass = 92.15 g;...
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Transcribed Image Text:Calculate the amount of heat needed to boil 146. g of water (H,O), beginning from a temperature of 20.1 °C. Round your answer to 3 significant digits. Also,
be sure your answer contains a unit symbol.
x10
Expert Solution
Step 1
You will need to know the heat of fusion of water.
The molar heat of vapourization for water is 40.7 kJ/mol.
First you calculate heat of vaporization of 146. g water
q1 is the heat of vaporization n of water at 0°C and q2 is the heat when the temperature of water rises from 0 degree to 20.1℃ .
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