The point of intersection and sudden increase in the slope, in the diagram given below, respectively, indicates:
Option 1 -<p>ΔG = 0 and reduction of the metal oxide<br><!-- [if !supportLineBreakNewLine]--><br><!--[endif]--></p>
Option 2 -<p>ΔG = 0 and melting or boiling point of the metal oxide<br><!-- [if !supportLineBreakNewLine]--><br><!--[endif]--><br><!--[endif]--></p>
Option 3 -<p>ΔG > 0 and decomposition of the metal oxide</p>
Option 4 -<p>ΔG < 0 and decomposition of the metal oxide</p>
At the point of intersection in an Ellingham diagram? G for two processes becomes equal, so? G for the reduction becomes zero. A sudden increase in the slope indicates a change in the state of the metal oxide, i.e., from solid to liquid or liquid to vapor.
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