Pressure-Temperature Relationships in Gases

Pressure-Temperature Relationships in Gases - Drew...

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Drew Rasmussen Katri Truhler Chemistry 111L – 015 12 November 2010 Pressure-Temperature Relationships in Gases 1. In order to perform this experiment two factors had to be kept present. For the purpose of this lab volume and number of moles were held constant. 2. PV=nRT is the standard equation used for calculations involving gas, pressure, etc… From this formula you can derive P=T/V since “nR” is constant. This means that Pressure is directly related to Temperature since as temperature increases so does pressure, and as temperature decreases pressure does as well. 3. The above relationship is caused by molecular movement. As temperature increases so does average molecule speed. It is known that pressure is caused by the average force of the molecules bouncing off the walls, so as the molecules move faster they begin to strike the walls of the container more often, and with greater momentum.
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Pressure-Temperature Relationships in Gases - Drew...

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