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What are the heat capacity constant (Cp) values for C10H8 ,O2 , C8H4O3 ,CO2 and H2O at 600 K according to the Antoine equation?
The Antoine equation is a class of semi-empirical correlation describing the relation between vapor pressure and temperature for pure components .
p=10A- B/C+T
Where p is the vapor pressure ,T is temperature and A,B and C are component-specific constants
So,Vapor pressure of C10H4O3 ,O2 ,Phthalic anhydride ,co2 ,H20 at 600k Temperature
to be calculated using the above formula Antoine equation .
Vapor pressure
C10H4O3 7,5 kpa (600k)
O2 130 pa
C8H4O3 0.0225 mmHg
CO2 86 MPa
H20 303 kpa
Step 2
Plotting saturation pressure as a function of temperature Then getting the value of heat capacity constant cp at specific pressure and 600 k .
Plotting X axis Temperature
plotting Y axis vapor pressure
Heat capacity constant Cp value
C10H8(naphthalene) 165.72 j/mol-k
O2 0.22 Btu/lbmoF
C8H4O3(phthalic anhydride) 226.20( j/mol*k)
CO2 0.21 Btu/lbmoF
H2O 75.291 JK-1 mol-1