Critical pressure of a liquid is the pressure
A. Above which liquid will remain liquid
B. Above which liquid becomes gas
C. Above which liquid becomes vapour
D. Above which liquid becomes solid
Answer: Option A
Solution(By Examveda Team)
Critical pressure is the pressure required to liquify a gas at or below its critical temperature.Critical pressure of a liquid is the pressure, above which liquid will remain liquid.
This Question Belongs to Mechanical Engineering >> Refrigeration And Air Conditioning
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Comments ( 2 )
Nusselt number (NN) is given by
A. $${{\text{N}}_{\text{N}}} = \frac{{{\text{h}}l}}{{\text{k}}}$$
B. $${{\text{N}}_{\text{N}}} = \frac{{\mu {{\text{c}}_{\text{p}}}}}{{\text{k}}}$$
C. $${{\text{N}}_{\text{N}}} = \frac{{\rho {\text{V}}l}}{\mu }$$
D. $${{\text{N}}_{\text{N}}} = \frac{{{{\text{V}}^2}}}{{{\text{t}}{{\text{c}}_{\text{p}}}}}$$
In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor)
A. B.P.F. - 1
B. 1 - B.P.F.
C. $$\frac{1}{{{\text{B}}{\text{.P}}{\text{.F}}{\text{.}}}}$$
D. 1 + B.P.F.
The undesirable property of a refrigerant is
A. Non-toxic
B. Non-flammable
C. Non-explosive
D. High boiling point
The desirable property of a refrigerant is
A. Low boiling point
B. High critical temperature
C. High latent heat of vaporisation
D. All of these
Wrong ans...
It will be (B)above which liquid never be in unsaturated vapour condition rather it will convert to saturated vapour or gas
Wrong ans...
It will be (B)above which liquid never be in unsaturated vapour condition rather it will convert to saturated vapour or gas