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Which terms are exothermic for the forma...

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)`

A

P only

B

Q only

C

P and R only

D

Q and R only

Text Solution

Verified by Experts

The correct Answer is:
D
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