Muskan Trivedi posted an Question
July 09, 2022 • 10:45 am 30 points
  • IIT JAM
  • Chemistry (CY)

101. consider the ag and af, 0/mol) for the following oxides. which oxide can be most easily decomposed to form the metal and oxygen gas? (a) zno (ag°= -318.4,

101. Consider the aG and af, 0/mol) for the following oxides. Which oxide can be most easily decomposed to form the metal and oxygen gas? (a) ZnO (aG°= -318.4, AH° =-348.3) ) HgO (AG° = - 58.5, AH° = -90.8) b) Cuo (AG°= -146.0g, AH°=-168.8) C) Pbo (aG°=-187.9, AH°=-217.3)

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    Shabir ahmad bhat Best Answer

    the correct option is C. Larger the negative value of ∆G more is the stability of a compound. Among the given oxides, the least stable is HgO (mercuric oxide), due to lower value of ∆G. therefore it easily decomposed to mettalic mercury

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