For which of the following reactions- the entropy change is positive-displaystyle - H - 2 -frac - 1 - 2 - - O - 2 -rightarrow - H - 2 -Odisplaystyle underset - left- g right- - - Na - - - - -underset - left- g right- - - Cl - - - - rightarrow underset - left- s right- - Na - Cldisplaystyle underset - left- l right- - NaCl - rightarrow underset - left- s right- - NaCl - displaystyle underset - left- l right- - - H - 2 -O - rightarrow underset - left- g right- - - H - 2 -O -

Question

Toppr Admin · Accepted Answer

Entropy change is positive for vaporization of liquid water to water vapor-The entropy of a compound in gaseous state is higher than the entropy of compound in liquid state-

For which of the following reactions, the entropy change is positive?
$H_{2} + \frac{1}{2} O_{2} \to H_{2} O$
${N a}^{+} (g) + {C l}^{-} (g) \to N a (s) C l$
$N a C l (l) \to N a C l (s)$
$H_{2} O (l) \to H_{2} O (g)$

Entropy change is positive for vaporization of liquid water to water vapor.
The entropy of a compound in gaseous state is higher than the entropy of compound in liquid state.

For which of the following reactions, the entropy change is positive?H2+12O2→H2ONa+(g)+Cl−(g)→Na(s)ClNaCl(l)→NaCl(s)H2O(l)→H2O(g)

Entropy change is positive for vaporization of liquid water to water vapor.The entropy of a compound in gaseous state is higher than the entropy of compound in liquid state.

For which of the following reactions, the entropy change is positive?
$H_{2} + \frac{1}{2} O_{2} \to H_{2} O$
${N a}^{+} (g) + {C l}^{-} (g) \to N a (s) C l$
$N a C l (l) \to N a C l (s)$
$H_{2} O (l) \to H_{2} O (g)$

Entropy change is positive for vaporization of liquid water to water vapor.
The entropy of a compound in gaseous state is higher than the entropy of compound in liquid state.