Pressure versus temperature graphs of an ideal gas are as shown in figure. Choose the wrong statement

Options

A. Density of gas is incresing in graph (i)
B. Density of gas decreasing in graph (ii)
C. Density of gas isconstant in graph (iii)
D. None of the above

Answer

D

Explanation

For equation : `(because p = (rhoRT)/(M_(w)))`
At constant temperature ` rho prop P`
`1`st graph : `rho prop P` At constant temperature
For `2`nd graph : (`because P = (rhoRT)/(M_(w)))`
At constant `P` , `rho prop (1)/(t)`
For `3`rd graph `L: (dP)/(dT)` = constant ` implies P prop T`
`implies ` density `rho` = constant