Answer:
Explanation:
when we get out of the water we feel quite cold due to the latent heat of evaporation of water.
Water at our body gets converted into gas and leaves behind the cooling effect which makes us feel cold.
While when we are inside the pool we are in constant touch of water, therefore, we get the warmth of the water and it becomes difficult to bear it.
Answer:
T = 365.58 K
Explanation:
Given that,
The concentration of solution, C = 0.750M
Osmotic pressure, P = 22.5 atm
We need to find the temperature of the solution.
The formula for the osmotic pressure is given by :

Where
R is gas constant, 

So, the temperature of the solution is 365.58 K.
Answer:
7.2 as used in the equation
Answer:
Part 1) Number of electrons in 1 liter of water equals
Part 2) Net charge of all the electrons equals 
Explanation:
Since we know that the density of water is 1 kilogram per liter thus we infer that mass of 1 liter of water is 1 kilogram hence we need to find electron's in 1 kg of water.
Now since it is given that molar mass of water is 18.0 grams this means that 1 mole of water contains 18 grams of water.
Hence by ratio and proportion number of moles in 1 kg water equals

Now by definition of mole we know that 1 mole of any substance is Avagadro Number of particles.
Hence the no of molecules in 'n' moles of water equals
Now since it is given that each molecule has 10 electron's thus the total number of electrons in n' molecules equals

Part 2)
We know that charge of 1 electron equals
the the charge of electrons in 'N' quantity equals