Chemistry

Explain Pressure Volume Experimental Data for Carbon Dioxide

The volume, V litres, of one mole of CO2 gas was measured as the pressure of p atmospheres (atm) was varied at a constant temperature of 313 K.

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Manually plot p versus V and also plot log(p) against log( V). Comment upon which of the plots is most useful for displaying the data.

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Pressure against volume plot for CO2

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Log (p) versus log (v) plot for CO2

The data covers a wide range of values and clearly the log-log plot allows the data to be viewed more clearly and it also would allow any “rogue” points in the pressure volume experimental data to be noted for remeasuring.