Day 3

Volume Vs. Temperature 

 

In this laboratory experiment we wanted to see the relationship between changes in volume as temperature changes. We utilized a flask, syringe, and temperature probe to see the change in volume for cold, hot and room temperatures.

In order to obtain the volume of the entire flask and the connection between the syringe and the flask, we took the change in mass, in grams, by weighing taking the difference between an empty flask and a full flask of water.  We then took this change in mass multiplied by the density of water in order to obtain the volume in ,cm^3.

The Table above is the data of the measured temperature changes in Kelvin and volume change in cubic cm.  The graph shows that there is a proportional relationship between volume and temperature. The slope of the linear equation above, 0.1187x, is the relation between V/T, with units of  (cm^3/K).

 

The photo above displays how the units of the slope of the Volume vs Temperature graph should be cm^3/ K.

Since we had already solved for all three constant, we are able to determine the the ideal gas constant R by the equation above.

The picture above shows the calculation for R, the ideal gas constant, however, the units and the number are off since R= 8.314 (J/(mol*K).  This error may also be due to the fact that when the lab for Pressure vs Temperature, the temperature units of the experiment were measure in degrees Celsius rather than in measurements of Kelvin.