What is the relative humidity on a day, when partial pressure of water vapour is 0.012 × 105 Pa and temperature is 12°C ? The vapour pressure of water at this temperature is 0.016 × 105 Pa

Question

What is the relative humidity on a day, when partial pressure of water vapour is 0.012 × 105 Pa and temperature is 12°C ? The vapour pressure of water at this temperature is 0.016 × 105 Pa (A) 68% (B) 52% (C) 25% (D) 75%

Tardigrade Admin · Accepted Answer

Given that standard vapour pressure at 12° C =0.016 × 105 Pa The partial pressure of water vapour at 12° C is =0.012 × 105 Pa ∴ R . H. =( text Vapour pressure of air / text SVP at the same temperature ) =(0.012 × 105/0.016 × 105) =0.75=75 %

Q. What is the relative humidity on a day, when partial pressure of water vapour is 0.012×105Pa and temperature is 12∘C ? The vapour pressure of water at this temperature is 0.016×105 Pa

68%

52%

25%

75%

Given that standard vapour pressure at 12∘C =0.016×105Pa The partial pressure of water vapour at 12∘C is =0.012×105Pa ∴R.H.= SVP at the same temperature Vapour pressure of air ​ =0.016×1050.012×105​ =0.75=75%

Q. What is the relative humidity on a day, when partial pressure of water vapour is $0.012 \times 1 0^{5} P a$ and temperature is $1 2^{\circ} C$ ? The vapour pressure of water at this temperature is $0.016 \times 1 0^{5}$ Pa