A) a straight line parallel to x-axis for all the gases
B) a straight line passing through origin with a slope having a constant value for all the gases
C) a straight line passing through origin with a slope having different values for different gases
D) a straight line parallel to y-axis for all the gases
Correct Answer: C
Solution :
\[\frac{PV}{T}=nR=\left( \frac{m}{M} \right)R\] or \[\frac{PV}{T}=\left( \frac{R}{M} \right)m\] i.e. \[\frac{PV}{T}\] versus m graph is straight line passing through origin with slope R/M, i.e. the slope depends on molecular mass of the gas M and is different for different gases.
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