Question

In which of the following both species have zero
standard enthalpy of formation?
(1) H2(g), H® (aq)
(2) D2(g), D20(l)
(3) P(s) (white); I2(g)
(4) 02(g), 03(g)​

Answer 1

Answer:

H2

D2

P

O2

these have zero enthalpy of formation

hope this helps

Answer 2

Answer:

H2

D2

P

O2

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