JAMB - Physics (2003 - No. 11)
| TºC | 0 | 5 | 10 | 15 | 20 | 40 | 60 |
| S.V.P(mmHg) | 4.58 | 6.51 | 8.94 | 12.67 | 17.50 | 55.10 | 149.00 |
The table above shows the saturation vapour pressure against temperature in a certain town. If the vapour pressure in this town at 20oC is 10mmHg, what is the relative humidity?
170.0%
57.0%
17.5%
10.0%
Explanation
R.H = \(\frac{Partial Pressure of Water Vapour Present}{S.V.P at temperature of atmosphere}\) x 100
= \(\frac{10}{17.50}\) x 100
= 57.14% ≈ 57%
= \(\frac{10}{17.50}\) x 100
= 57.14% ≈ 57%
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