Human hair. Human hair as energy because it is living so, it is most likely to give up electrons.
Answer:
P₂ = 0.8 atm
Explanation:
Given data:
Initial pressure = 1 atm
Initial volume = 7 L
Final volume = 9 L
Final pressure = ?
Solution:
P₁V₁ = P₂V₂
P₁ = Initial pressure
V₁ = Initial volume
P₂ = Final pressure
V₂ = Final volume
Now we will put the vales in formula.
P₁V₁ = P₂V₂
P₂ = P₁V₁ /V₂
P₂ = 1 atm × 7 L / 9 L
P₂ = 7 atm. L / 9 L
P₂ = 0.8 atm
Explanation:
The amount of moisture present in air at a given temperature is known as humidity.
Whereas relative humidity is the amount of percentage of moisture it contains when compared to the maximum moisture it can contain at a given temperature.
Also % Relative humidity (RH) =
where, P = the partial pressure of water vapour
= the equilibrium vapor pressure at a particular temperature.
Accrding to the Clausius-Clapeyron equation,
decreases with decrease in temperature.
Hence, it means that at super-cooled conditions the %RH would be 100%.
On the other hand, the temperature will be very high at super-heated conditions.
Hence,
will be high hence %RH will be low.
It is also known that at saturated condition, P = ![P_{vap}](https://tex.z-dn.net/?f=P_%7Bvap%7D)
Therefore, %RH is 100.
Thus, we can conclude that when the relative humidity is 90%, we say the air is humid.