1
Question
The enthalpies of all elements in their standard states are:
(i) unity
(ii) zero
(iii) < 0
(iv) different for each element
The enthalpies of all elements in their standard states are:
(i) unity
(ii) zero
(iii) < 0
(iv) different for each element
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Solution
The enthalpy of all elements in their standard state is zero.
Therefore, alternative (ii) is correct.
The enthalpy of all elements in their standard state is zero.
Therefore, alternative (ii) is correct.
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