From the following V-T diagram, what is true about pressure?" "[2009]

Options

A. `P_(1)ltP_(2)`
B. `P_(1)gtP_(2)`
C. `P_(1)=P_(2)`
D. Cannot predict

Answer

A

Explanation

As V-T graph is a straight line with positive siope therefore its equation, may be written as
`V=aT+b`
From standard gas equation,
`p=(RT)/(V)=(RT)/(AT)+b=(R)/(a+b)//T`
As, `T_(2)gtT_(1)`
`therefore`" "` P_(2)gtP_(1)orPO_(1)ltP_(2)`