The figure below shows the plot of PVnT versus P for oxygen gas at two different temperatures.Read the following statements concerning the above curves ; (i) The dotted line corresponds to the ‘ideal’ gas behaviour.(ii) $$T1$$ $$T2(iii)$$ The value ofPVnT at the point where the curves meet on the $$y-axis$$ is the same for all gasesWhich of the above statement is true

Question

The figure below shows the plot of PVnT versus P for oxygen gas at two different temperatures.Read the following statements concerning the above curves ;  (i) The dotted line corresponds to the ‘ideal’ gas behaviour.(ii) $$T1$$ > $$T2(iii)$$ The value ofPVnT at the point where the curves meet on the $$y-axis$$ is the same for all gasesWhich of the above statement is true

Infinity Learn · Accepted Answer

(i) the dotted line in the diagram shows that there is no deviation in the value of PVnT for different temperature $$T1$$ and $$T2$$ for increasing pressure, so this gas behaves ideally. Hence, dotted line corresponds to ‘real’ gas behavior.(ii) We know at high temperature, the deviation of the gas is less and at low temperature the deviation of gas is more. In the graph, deviation for $$T2$$ is greater than for $$T1$$. Thus, $$T1$$ > $$T2$$

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