Question

Would you expect the second electron gain enthalpy of oxygen as positive more negative or left and negative than the first justify your answer

Answer 1

Explanation:

first electron gain enthalpy of oxygen is negative . But when another electron is add to O- ion to form O2- ion , it feels stronger electrostatic repulsion. hence, when we add 2nd electron , then energy absorb by it. that's why the 2nd electron gain enthalpy of oxygen is positive.

Answer 2

Answer:

$<font color =red>$

An invention is a unique or novel device, method, composition or process. It may be an improvement upon a machine or product, or a new process for creating an object or a result. An invention that achieves a completely unique function or result may be a radical breakthrough. Such works are novel and not obvious to others skilled in the same field.”