For a spontaneous process,

  • A
    enthalpy change of the system must be negative
  • B
    entropy change of the system must be positive
  • C
    entropy change of the surrounding must be positive
  • D
    entropy change of the system plus surrounding must be positive

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Similar Questions

Give the mathematical equation for entropy change.

Identify the reaction/process in which the entropy decreases.

Identify the correct statement regarding a spontaneous process:

What is entropy?

In which of the following processes does entropy increase?
$A$. $A$ liquid evaporates to vapour.
$B$. Temperature of a crystalline solid is lowered from $130 \ K$ to $0 \ K$.
$C$. $2 NaHCO_{3(s)} \rightarrow Na_2CO_{3(s)} + CO_{2(g)} + H_2O_{(g)}$
$D$. $Cl_{2(g)} \rightarrow 2 Cl_{(g)}$
Choose the correct answer from the options given below:

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