Light of a certain energy shines on a metal and causes electrons to be emitted.

based on the research of albert einstein, what change would most likely result in stopping the emission of electrons from this metal?

Light of certain energy shines on a metal and causes electrons to be emitted. Based on the research of Albert Einstein, the change that would most likely result in stopping the emission of electrons from this metal is to coat the metal.

a patient chooses to not take a beneficial medical treatment.

explanation:

answer: the enthalpy of the overall chemical reaction is +87.88 kj or +88 kj.

according to hess's law, the overall enthalpy of a reaction is the difference between the sum of enthalpy values of all the products and the sum of enthalpy values of all the reactants.

δh(reaction) = ∑nδh(products) - ∑nδh(reactants)

δh(reaction) = [δh +δh] - [δh]

δh(reaction) = [1(-287.02) + 1(0) ] - [1(-374.9)] kj = +87.88 kj

here, δh (pcl3) = -287.02 kj, δh(cl2) = 0, δh(pcl5) = -374.9 kj

therefore, enthalpy of the overall reaction is +87.88 kj or +88 kj.