JAMB - Physics (2024 - No. 15)
If the S.V.P of water vapour was 13.5mmHg at 33ºC and 7.3mmHg at 7ºC. Find the percentage relative of the air on a day when average air temperature was 33ºC and dew point was 7ºC.
55%
60%
54%
51%
Објашњење
Relative humidity = \(\frac{\text{S.V.P at dew point}}{\text{S.V.P at air temperature}}\)
S.V.P at dew point = 7.3mmHg
S.V.P at air temperature = 13.5mmHg
R.H = \(\frac{7.3}{13.5}\) x 100 \(\approxeq\) 54%