A) How many kilograms of water can be evaporated from a 1 m² surface of water in a lake on a hot, clear summer day, if it is assumed that the limiting factor is the Sun's heat of 1800 Js-¹m-2 for an 8-hour day? Assume that the air and water temperatures remain constant at 40°C.(answer should be 21.6 kg) B) What volume of air is needed to hold this much water vapor at 40°C? (answer should be 423 m³) C) When the Sun sets, the air temperature drops to 20°C. Assuming that the excess water vapor is precipitated as rain, calculate the weight of the rain. Assuming that the excess water vapor is precipitated as rain, calculate the amount of heat released when the water condenses.(weight of water should be 14.1 kg) D) Calculate the vapor pressure of liquid water at 200°C. Assume that the heat of vaporization does not change from its value at 100°C (pressure should be 16.1 bar) ***I provided the answers to each question form back of the book in parenthesis after each question. All i need is work shown how to get to these!***
A) How many kilograms of water can be evaporated from a 1 m² surface of water in a lake on a hot, clear summer day, if it is assumed that the limiting factor is the Sun's heat of 1800 Js-¹m-2 for an 8-hour day? Assume that the air and water temperatures remain constant at 40°C.(answer should be 21.6 kg) B) What volume of air is needed to hold this much water vapor at 40°C? (answer should be 423 m³) C) When the Sun sets, the air temperature drops to 20°C. Assuming that the excess water vapor is precipitated as rain, calculate the weight of the rain. Assuming that the excess water vapor is precipitated as rain, calculate the amount of heat released when the water condenses.(weight of water should be 14.1 kg) D) Calculate the vapor pressure of liquid water at 200°C. Assume that the heat of vaporization does not change from its value at 100°C (pressure should be 16.1 bar) ***I provided the answers to each question form back of the book in parenthesis after each question. All i need is work shown how to get to these!***
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter10: Liquids And Solids
Section: Chapter Questions
Problem 52E: Evaporation of sweat requires energy and thus take excess heat away from the body. Some of the water...
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The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
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Transcribed Image Text:A) How many kilograms of water can be evaporated from a 1 m² surface of water in a lake on a hot, clear summer day, if it is assumed that the limiting factor is the Sun's heat
of 1800 Js ¹m² for an 8-hour day? Assume that the air and water temperatures remain constant at 40°C.(answer should be 21.6 kg)
B) What volume of air is needed to hold this much water vapor at 40°C? (answer should be 423 m³)
C) When the Sun sets, the air temperature drops to 20°C. Assuming that the excess water vapor is precipitated as rain, calculate the weight of the rain. Assuming that the
excess water vapor is precipitated as rain, calculate the amount of heat released when the water condenses. (weight of water should be 14.1 kg)
D) Calculate the vapor pressure of liquid water at 200°C. Assume that the heat of vaporization does not change from its value at 100°C (pressure should be 16.1 bar)
***I provided the answers to each question form back of the book in parenthesis after each question. All i need is work shown how to get to these!***
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