Q.According to the Ellingham diagram, the slope of the line for the reaction $2M(s) + O_2(g) \rightarrow 2MO(s)$ is positive because:

The randomness (entropy) decreases as oxygen gas is consumed

The reaction is exothermic

The reaction is endothermic

The randomness increases

The correct solution involves applying the fundamental concept to derive the final value step by step...

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Q.According to the Ellingham diagram, the slope of the line for the reaction 2M(s)+O2(g)→2MO(s)2M(s) + O_2(g) \rightarrow 2MO(s)2M(s)+O2​(g)→2MO(s) is positive because: