A gas can be liquefied at temperature T and pressure P provided

Question

A gas can be liquefied at temperature T and pressure P provided (A) T = Tc and P < Pc (B) T < Tc and P > Pc (C) T > Tc and P > Pc (D) T > Tc and P < Pc

Tardigrade Admin · Accepted Answer

A gas can be liquefied at temperature T when it is lower than critical temperature, Tc and pressure p is greater than critical pressure. Hence, T< Tc and p >pc.

Q. A gas can be liquefied at temperature $T$ and pressure $P$ provided

$T = T_{c}$ and $P < P_{c}$

$T < T_{c}$ and $P > P_{c}$

$T > T_{c}$ and $P > P_{c}$

$T > T_{c}$ and $P < P_{c}$

A gas can be liquefied at temperature $T$ when it is lower than critical temperature, $T_{c}$ and pressure $p$ is greater than critical pressure.
Hence, $T < T_{c}$ and $p > p_{c}$ .

Q. A gas can be liquefied at temperature T and pressure P provided

T=Tc​ and P<Pc​

T<Tc​ and P>Pc​

T>Tc​ and P>Pc​

T>Tc​ and P<Pc​