Which element is most likely to carry electric current easily?
tin
sulfur
anitmony
selenium

Option (a) is the correct answer.

Explanation:

Electric current is the flow of electrons and an atom that has free electrons will be able to carry current easily.

Hence, electronic configurations of the given elements are as follows.

Tin (Sn) -

Sulfur (S) -

Antimony (Sb) -

Selenium (Se) -

So, sulfur and selenium being non-metals won't be able to conduct electricity. Whereas both tin and antimony are poor metals but they are able to conduct electricity.

Antimony has half filled p-shell so, it will not lose its valence electrons as it is stable. Whereas tin will easily lose its valence electrons to become stable.

Thus, we can conclude that tin is the element that is most likely to carry electric current easily.

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :