The absortion of energy to separate the molecules. In the liquid state the molecules are closer and to manage the separation neededd in the gas state the molecules need energy from the surroundings.
This is actually incorrect, the distance as stated above either from trough to trough or from crest to crest within a corresponding wave, would be referred or called as the wavelength of the given wave.
The rate of the forward reaction and the rate of the reverse reaction are equal when a reaction is in dynamic equilibrium.
Answer:
Veins
Explanation:
Veins, which usually look blue, return blood to the heart.
