O + 2e^(-) to O^(-) , DeltaH = 639 kJ/mole O + e^(-)to O^(-) DeltaH o= -141 kJ/mole O^(-) + e^(-) to O^(-) , DeltaH = xkJ/mole What is the value of x ?

O + 2e^(-) to O^(-) , DeltaH = 639 kJ/mole O + e^(-)to O^(-) DeltaH o

1.	O + 2e^(-) to O^(-) , DeltaH = 639 kJ/mole O + e^(-)to O^(-) DeltaH o= -141 kJ/mole O^(-) + e^(-) to O^(-) , DeltaH = xkJ/mole What is the value of x ?
Answer» `– 780 ` `+ 780 ` `– 498 ` `+ 498` ANSWER :B