[" The process that is NOT endothermic in "],[" nature is : "],[H_((g))+e^(-)rarr H_((g))^(-)],[Ar_((g))+e^(-)rarr Ar_((g))]

[" Find exothermic reaction : "],[" (1) "F_((g))^(-)rarr F_((g))+e^(-)],[" (2) "Be_((g))+e^(-)rarr Be_((g))^(-)],[" (3) "O_((g))+e^(-)rarr O_((g))^(-)],[" (4) "O_((g))+2e^(-)rarr O_((g))^(2-)]

In which of the following process maximum energy is released A) S_((g))+e^(-) rarr S_((g))^(-) B) O_((g))^(-) +e^(-) rarr O_((g))^(-2) C) S_((g))^(-)+e^(-) rarr S_((g))^(-2)

X_((g))+e rarr X_((g))^(-) +E , Here ''E'' is

For the reaction : 2 NH_(3)(g) rarr N_(2)(g) + 3 H_(2)(g)

Which one of the following processes proceeds with the absorption of energy? F(g)+e^(-) rarr F^(-) (g) , F(g)+e^(-) rarr F^(-) (g) , O(g)+e^(-) rarr O^(-)(g) , Cl(g)+e^(-) rarr Cl^(-) (g)

The formation of the oxide ion O_(g)^(2-) requires first an exothermic and then an endothermic step as shown below: O_(g)+e^(-) rarr O_(g)^(-) , DeltaH=-142 kJ mol^(-1) O(g)+e rarr O_(g)^(2-) , DeltaH=844kJ mol^(-1) This is because:

The formation of the oxide ion O_(g)^(2-) requires first an exothermic and then an endothermic step as shown below: O_(g)+e^(-) rarr O_(g)^(-) , DeltaH=-142 kJ mol^(-1) O(g)+e rarr O_(g)^(2-) , DeltaH=844kJ mol^(-1) This is because:

The formation of the oixde ion, O^(2+)(g) from oxygen atom requires first an exothermic and then an endothermic step as shown below: O(g)+e^(-) rarr O^(-)(g), Delta H^(O)=-141kJ mol^(-) O(g)+e^(-) rarr O^(-)(g), H^(O)=-kJ mol^(-) Thus the process of formation of O^(2-) in gas phase is neon. It is due to the fact that

Which terms are exothermic for the formation of NaF(s) ? (P) Na(g) rarr Na^(+) (g)+e^(-) (Q) F(g)+e^(-) rarr F^(-)(g) (R) Na^(+)(g)+F^(-)(g) rarr NaF(s)