How many newton’s to lift a 25kg weight

Idon’t understand this page, can someone ?

Why is the vapor pressure of a warm lake higher than the vapor pressure of a cold lake? o a. warm water has a greater heat of vaporization. ob. warm water evaporates more quickly. cool water evaporates more quickly. od. cool water has a greater heat of vaporization.

If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million