What is the unit of $\Delta S_m^\circ$?
- A$cal \ K^{-1}$
- B$kcal \ K \ mol^{-1}$
- C$kJ \ K^{-1} \ mol$
- D$cal \ K^{-1} \ mol^{-1}$
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The condition for a spontaneous process is ......
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View SolutionFor which of the following reactions will $\Delta S$ be maximum?
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View Solution$30.4 \, kJ$ of heat is required to melt one mole of sodium chloride and the entropy change at the melting point is $28.4 \, J \, K^{-1} \, mol^{-1}$ at $1 \, atm$. The melting point of sodium chloride is $........... \, K$ (Nearest Integer).
Observe the following reactions:
$I$. $CaCO_{3(s)} \rightarrow CaO_{(s)} + CO_{2(g)}$
$II$. $Cl_{2(g)} \rightarrow 2 Cl_{(g)}$
$III$. $H_2O_{(l)} \rightarrow H_2O_{(s)}$
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$I$. $CaCO_{3(s)} \rightarrow CaO_{(s)} + CO_{2(g)}$
$II$. $Cl_{2(g)} \rightarrow 2 Cl_{(g)}$
$III$. $H_2O_{(l)} \rightarrow H_2O_{(s)}$
Identify the reactions in which entropy increases.
For the reaction $A + B \rightarrow C + D + q$,which has a positive entropy change,the reaction:
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