Question

Which of the following is not true with respect to the Ellingham diagram?

Options

• Free energy changes follow a straight line. Deviation occurs when there is a phase change.

• The graph for the formation of CO₂ is a straight line almost parallel to free energy axis.

• Negative slope of CO shows that it becomes more stable with increase in temperature.

• Positive slope of metal oxides shows that their stabilities decrease with increase in temperature.

Answer 1

The graph for the formation of CO₂ is a straight line almost parallel to free energy axis.