MCQ
The enthalpies of the elements in their standard states are assumed to be
- ✓Zero at $298\, K$
- BUnit at $298\, K$
- CZero at all temperatures
- DZero at $273\,K$
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$[{R_H} = 1 \times {10^5}\,c{m^{ - 1}},\,h\, = 6.6\, \times {10^{ - 34}}\,Js\,\,c = 3\, \times \,{10^8}\,m{s^{ - 1}}]$
