Marcet Boiler

Topics: Temperature, Thermodynamics, Gas Pages: 2 (372 words) Published: April 9, 2013
Marcet Boiler 
1. Abstract

This experiment was carried out to determine the relationship between the pressure andthe temperature of saturated steam in equilibrium. Besides that this experiment was alsodone to demonstrate the vapor pressure curve. The market Boiler was used for thisexperiment. When the pressure increases, the temperature also increases. Therefore, therelationship of pressure and temperature is directly proportional. The derived formulaeand the data were used to calculate the slope. The dT/dP measured was compared withthe data in the steam table. Theoretically, the values measured should be almost the samewith the predicted values. However, at certain points, the values are not the same. Thismay because of the errors made in the experiment.

2. Introduction
 Thermodynamics study about the interchange of heat and work between a system and thesurroundings which occurs when the system undergoes a process. Thermodynamic alsoconcerned about the changes in the properties of fluid. Most thermodynamics substancessuch as gases and vapours are often referred as P-V-T substances.An ideal gas obeys the equation of state that relates the pressure, specific volume or density, and absolute temperature with mass of molecule and the gas constant, R.However, real gas does not absolutely obey the equation of state. A few modifications onthe ideal gas equation of state allow its application in the properties of real gas. Whenenergy is added within water, the increasing of activities among the molecules caused theincrease in the number of molecule escape from the surface until an equilibrium state isreached. The state of equilibrium depends on the pressure between the water surface andsteam. The lower the pressure, the easier the molecules leaving the water surface and thusless energy is required to achieve the state of equilibrium (boiling point). The temperaturewhere equilibrium occurs at a given pressure level is called saturated temperature....
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