Correct Answer - Option 1 : m
w / m
a
Concept:
Humidity ratio/Specific humidity (ω ) (kg/kg) of a given moist air sample is defined as the ratio of the mass of water vapour (mw) to the mass of dry air (ma) contained in the sample.
\(w = \frac{{{m_w}}}{{{m_a}}} = 0.622\frac{{{P_v}}}{{P - {P_v }}} \)
Relative humidity (ϕ):
It is defined as the ratio of f water vapour (pv)in a mixture to the saturation pressure (ps) of pure water at the same temperature of the mixture.
\(\phi = \frac{{{p_v}}}{{{p_{vs}}}}\)