Generally, 60% of the mass of body is water.
So, amount of water in 100 kg person is:
In order to calculate the mass of a person if all the water were removed, then:
Mass of the body = 
[
Mass of the content of water in the body = 
Substituting the values:
Mass of a person if all the water were removed = 
.
Hence the mass of a person who weighs will weigh 
if all the water were removed from the body.
Water absorbs energy D. Melting
Answer:
Iconic bond is formed by cation and anion. A compound is made when atoms of two or more elements bond in a chemical reaction.
Explanation:
Answer:
To keep the evinermental machinces working
Explanation:
1 answer · Chemistry
Best Answer
Water steam condenses if its pressure is equal to vapor saturation vapor pressure.
Use the Clausius-Clapeyron relation.
I states the temperature gradient of the saturation pressure is equal to the quotient of molar enthalpy of phase change divided by molar volume change due to phase transition time temperature:
dp/dT = ΔH / (T·ΔV)
Because liquid volume is small compared to vapor volume
ΔV in vaporization is approximately equal to to the vapor volume. Further assume ideal gas phase:
ΔV ≈ V_v = R·T/p
Hence
dp/dT = ΔHv / (R·T²/p)
<=>
dlnp/dT = ΔHv / (R·T²)
If you solve this DE an apply boundary condition p(T₀)= p₀.
you get the common form:
ln(p/p₀) = (ΔHv/R)·(1/T₀ - 1/T)
<=>
p = p₀·exp{(ΔHv/R)·(1/T₀ - 1/T)}
For this problem use normal boiling point of water as reference point:
T₀ =100°C = 373.15K and p₀ = 1atm
Therefore the saturation vapor pressure at
T = 350°C = 623.15K
is
p = 1atm ·exp{(40700J / 8.314472kJ/mol)·(1/373.15K - 1/623.15K)} = 193 atm
hope this helps
