During the process `AB` of an ideal gas

Options

A. work done on the gas is zero
B. density of the gas is constant
C. slope of line `AB` from the T-axis is inversely proportional to the number of moles of the gas
D. slope of line `AB` from the T-axis is directly proportional to the number of moles of the gas

Answer

A, B, D

Explanation

`P-T` graph is a straight line passing through origin.
Therefore, `V=` constant.
`:. ` Work done on the gas `=0`.
Further, `rho=(m)/(V) prop (1)/(V)`
Volume of the gas is constant. Therefore, density of gas is also constant.
`PV= nRT`
or `P=((nRT)/(V))T`
`i.e.,` slope of `P-T` line `prop n`