2. Questions Bank
  3. NEET
  4. Chemistry
  5. Thermodynamics / रासायनिक उष्मागतिकी

NEET Chemistry Thermodynamics / रासायनिक उष्मागतिकी Question Bank Self Evaluation Test - Thermodynamics

  • question_answer
    Consider the \[\Delta {{G}^{{}^\circ }}_{f}\] and \[\Delta {{H}^{{}^\circ }}_{f}(kJ/mol)\] for the following oxides. Which oxide can be most easily decomposed to form the metal and oxygen gas?

    A) \[ZnO\left( \Delta G{}^\circ =-318.4,\text{ }\Delta H{}^\circ =-348.3 \right)\]

    B) \[C{{u}_{2}}O\left( \Delta G{}^\circ =-146.0,\text{ }\Delta H{}^\circ =-168.8 \right)\]

    C) \[HgO\left( \Delta G{}^\circ =-58.5,\text{ }\Delta H{}^\circ =-90.8 \right)\]

    D) \[PbO\left( \Delta G{}^\circ =-187.9,\text{ }\Delta H{}^\circ =-217.3 \right)\]

    Correct Answer: C

    Solution :

    [c] \[\Delta G{}^\circ =-\,RT\text{ ln }K\text{ };\] \[\uparrow \] stability of reactant \[\downarrow \]


You need to login to perform this action.
You will be redirected in 3 sec spinner