What is K in Clausius-Clapeyron equation?
What is K in Clausius-Clapeyron equation?
Thus the effect of a temperature increase on molecular density depends upon the magnitude of the latent heat of vaporization compared to RT. The latent heat of vaporization for water is 2.257×106 J/kg. The gas constant for water vapor in SI units is 461.5 J/(kg K) so at T=300 K, RT=1.3845×105 J/kg.
When can you use the Clausius-Clapeyron equation?
The equation describes the phase transition between two phases of matter that have the same composition. Thus, the Clausius-Clapeyron equation can be used to estimate vapor pressure as a function of temperature or to find the heat of the phase transition from the vapor pressures at two temperatures.
How do you find the boiling point of heat of vaporization?
Tc = 647.3 K and Pc = 221.2 bar (218.3 atm), the heat of vaporization is obtained as 42,060 J/mol….[edit] Using Riedel’s equation.
| where: | |
|---|---|
| Hv | = Heat of vaporization, in J/mol |
| R | = 8.3144 = Universal gas constant, in J/(K mol) |
| Tn | = The liquid’s normal boiling point, in K |
| Tc | = The liquid’s critical temperature, in K |
How is the equation ln ( p2 / p1 ) solved?
This problem has been solved! The equation ln (p 2 /p 1 ) =- (ΔH ovap /R) [ (1/T 2 ) – (1/T 1 )] is derived assuming that the value forΔH vap is independent of temperature.
Where does W = NRT LN v2 / v1 come from?
dln(x)/dx = 1/x Since T is constant, Pi Vi = Pf Vf (Vf / Vi) = (pi / pf). W = n R T ln (Vf / Vi) = n R T ln (pi / pf) Credit: http://en.wikiversity.org/wiki/Thermodynamics/The_First_Law_Of_Thermodynamics http://hubpages.com/hub/MECHANICAL-ENGINEERING-Thermodynamics—PV-Work-compression-expansion-work
Which is greater the compression ratio P1 or P2?
Multiply both sides by (p1 / p2) to get: The quantity (v1 / v2) is the ratio of the volume at state 1 and state 2 and is called the compression ratio . For v2 less than v1, the pressure p2 is greater than p1 . With this equation we can determine the change in pressure for a given compression ratio.
Is the R18 Ultra the same as the LMP1?
Same as R18 Ultra but with a hybrid system powering the front wheels. Retains same name as 2012 model, but completely redesigned for 2014 LMP1 rules. Upgraded high-nose bodywork and new lithium-ion battery energy storage in place of flywheel .