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Question

Absolute humidity in atmosphere at $ 10^\circ $ is $5.0$ g/m$^3$ and maximum amount of water air can hold at same temperature is $ 10$ g m$^3$. What will be the relative humidity at the same temperature?

The correct answer is
~50%

Understanding Relative Humidity

Relative humidity (RH) indicates the amount of water vapor present in the air compared to the maximum amount the air could hold at a specific temperature. It's expressed as a percentage.

Humidity Calculation Formula

The formula to calculate relative humidity is:

$ \text{Relative Humidity (RH)} = \frac{\text{Absolute Humidity (AH)}}{\text{Saturation Humidity (SH)}} \times 100\% $

Applying the Formula

Given values:

  • Absolute Humidity ($AH$) = $5.0$ g/m$^3$
  • Saturation Humidity ($SH$) = $10$ g/m$^3$

Substitute these values into the formula:

$ \text{RH} = \frac{5.0 \text{ g/m}^3}{10 \text{ g/m}^3} \times 100\% $

Result

Performing the calculation:

$ \text{RH} = 0.5 \times 100\% $

$ \text{RH} = 50\% $

Therefore, the relative humidity at $10^\circ$ C is $50\%$.

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Important Questions from Atmosphere

  1. What is atmospheric window?
  2. Which one of the following gas was not released through volcanoes around 4 billion years ago?
  3. The change of atmospheric air temperature with altitude is _____
  4. Assertion (A) : Warmth of sun’s rays is advantageous during evening time.
    Reason (R) : Evening air contains moisture which absorbs the heat and allows the light.
    Select the most appropriate option :
  5. Which one of the following ranges of percentage of increase of CO2 in the atmosphere since 1750 is correct ?
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