Pressure of water vapour is given by
A. $$\frac{{0.622{{\text{P}}_{\text{v}}}}}{{{{\text{P}}_{\text{b}}} - {{\text{P}}_{\text{v}}}}}$$
B. $$\frac{\mu }{{1 - \left( {1 - \mu } \right)\frac{{{{\text{P}}_{\text{s}}}}}{{{{\text{P}}_{\text{b}}}}}}}$$
C. $$\frac{{{{\text{P}}_{\text{v}}}\left( {{{\text{P}}_{\text{b}}} - {{\text{P}}_{\text{d}}}} \right)}}{{{{\text{P}}_{\text{d}}}\left( {{{\text{P}}_{\text{b}}} - {{\text{P}}_{\text{v}}}} \right)}}$$
D. None of these
Answer: Option D
Solution (By Examveda Team)
Pressure of water vapour is given by, $$ln\left( {\frac{{{{\text{P}}_1}}}{{{{\text{P}}_2}}}} \right) = \left( {\frac{{\Delta {\text{Hvap}}}}{{\text{R}}}} \right)\left( {\frac{1}{{{{\text{T}}_2}}} - \frac{1}{{{{\text{T}}_1}}}} \right)$$This Question Belongs to Mechanical Engineering >> Refrigeration And Air Conditioning
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