For a process to occur spontaneously,

  • A
    only the entropy of the system must increase
  • B
    only the entropy of the surroundings must increase
  • C
    either the entropy of the system or that of the surroundings must increase
  • D
    the total entropy of the system and the surroundings must increase

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Melting point of a solid is $x \ K$ and its latent heat of fusion is $600 \ cal \ mol^{-1}$. The entropy change for fusion of $1 \ mol$ solid is $2 \ cal \ mol^{-1} \ K^{-1}$. The value of $x$ will be......$K$

Which of the following statements is correct?

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