If the volume of a confined gas is doubled while the temperature remains constant , what change (if any) would be observed in the pressure ?

Answer;

The pressure would be half as large

Explanation;According to Boyle's law, the volume occupied by a definite mass of a gas is inversely proportional to the applied pressure, at a constant temperature.The combined gas law states that the pressure of a gas is inversely proportional to the volume and directly related to the temperature. If temperature is held constant, the equation is reduced to Boyle's law. Therefore, if you increase the volume of a fixed amount of gas, its pressure will decrease.Therefore; If the volume of a confined gas is doubled while the temperature remains constant, then the pressure will be halved.

Outermost (valence) electrons

Answer:

a. energy is absorbed in the reaction.

explanation:

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.