Which of the following conditions will always lead to a non-spontaneous change?

  • A
    Positive $\Delta H$ and positive $\Delta S$
  • B
    Negative $\Delta H$ and negative $\Delta S$
  • C
    Positive $\Delta H$ and negative $\Delta S$
  • D
    Negative $\Delta H$ and positive $\Delta S$

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If a process is non-spontaneous,which of the following options is correct?

Which of the following conditions regarding a chemical process ensures its spontaneity at all temperatures?

Gibbs free energy $(G)$ is defined as

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