The enthalpies of all elements in their standard states are:
(i) unity
(ii) zero
(iii) < 0
(iv) different for each element

Question

The enthalpies of all elements in their standard states are - zero-0unitydifferent each element

Toppr Admin · Accepted Answer

The correct option is  A zeroThe enthalpies of all elements in their standard states are zero-Thus- the enthalpies of Na-s- K-s- He-g- etc- in their standard states are zero-

The enthalpies of all elements in their standard states are :
zero
$< 0$
unity
different for each element

The correct option is A zero
The enthalpies of all elements in their standard states are zero.
Thus, the enthalpies of Na(s), K(s) He(g) etc. in their standard states are zero.

The enthalpies of all elements in their standard states are : zero<0unitydifferent for each element

The correct option is A zeroThe enthalpies of all elements in their standard states are zero.Thus, the enthalpies of Na(s), K(s) He(g) etc. in their standard states are zero.

The enthalpies of all elements in their standard states are :
zero
$< 0$
unity
different for each element

The correct option is A zero
The enthalpies of all elements in their standard states are zero.
Thus, the enthalpies of Na(s), K(s) He(g) etc. in their standard states are zero.