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What is the mass of 5.00 mol of ethanol?         b) How much heat Q enters the ethanol?       c) How much work W done by the ethanol because of its thermal expansion?     d) What is the ratio W/Q?

What is the mass of 5.00 mol of ethanol?         b) How much heat Q enters the ethanol?       c) How much work W done by the ethanol because of its thermal expansion?     d) What is the ratio W/Q?

Physical Chemistry
Physical Chemistry
2nd Edition
ISBN:9781133958437
Author:Ball, David W. (david Warren), BAER, Tomas
Publisher:Ball, David W. (david Warren), BAER, Tomas
Chapter2: The First Law Of Thermodynamics
Section: Chapter Questions
Problem 2.91E: The Dieterici equation of state for one mole of gas is p=RTe-aVRTV-b Where a and b are constants...
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a) What is the mass of 5.00 mol of ethanol?        

b) How much heat Q enters the ethanol?      

c) How much work W done by the ethanol because of its thermal expansion?    

d) What is the ratio W/Q?

 
For an ideal gas Cy and Cp are different because of the work W associated with the volume change for a constant-pressure process. To explore the difference between Cy and Cp for a liquid or a solid, consider the process in which 5.00 mol of ethanol is warmed from 10.0°C to 60.0°C while the applied pressure remains a constant 1.00 atm. The molar mass of ethanol is M = 46.1 g/mol, and the coefficient of volume expansion is 110 × 10-5 K-¹.
Transcribed Image Text:For an ideal gas Cy and Cp are different because of the work W associated with the volume change for a constant-pressure process. To explore the difference between Cy and Cp for a liquid or a solid, consider the process in which 5.00 mol of ethanol is warmed from 10.0°C to 60.0°C while the applied pressure remains a constant 1.00 atm. The molar mass of ethanol is M = 46.1 g/mol, and the coefficient of volume expansion is 110 × 10-5 K-¹.
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