The equation,P(solution) = X(solvent * P(solvent), can be used to determine vapor pressure lowering. 300 grams of water is 300g x 1 mole/18.0g = 16.67 moles water. Thus, X = 16.67 moles water/17.07 moles total = 0.977 and the new pressure = 0.977 x 740 mm Hg = 723 mm Hg.
The answer will be A & B not only because it makes sense but evaporation is taking water away not adding to (gaining)
Las leyes de los gases son un conjunto de leyes químicas y físicas que permiten determinar el comportamiento de los gases en un sistema cerrado.
Parámetros de las leyes de los gases
Presión
Volumen
Temperatura
Moles
Answer:
The correct answer is in an exothermic reaction the energy of the product is less than the energy of the reactants.
Explanation:
Exothermic reaction is a type of reaction that generates heat.As a result in case of an exothermic reaction the energy of the reactant is more than the energy of the product.
That"s why the enthalpy change in an exothermic reaction is always positive .