Which of the following reactions has Delta S | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) Entropy $(S)$ is a measure of the randomness or disorder of a system. $\Delta S > 0$ implies an increase in entropy,which typically occurs when th

Vedclass · Accepted Answer

$NaNO_{3(s)} \rightleftharpoons Na^+_{(aq)} + NO_{3(aq)}^-$

Vedclass · Answer

(C) Entropy $(S)$ is a measure of the randomness or disorder of a system. $\Delta S > 0$ implies an increase in entropy,which typically occurs when the number of moles of gaseous products is greater than the number of moles of gaseous reactants,or when a solid dissolves into ions in an aqueous solution.$A$: $1 	ext{ mole of gas} ightarrow 0 	ext{ moles of gas}$. $\Delta S $B$: $	ext{Aqueous solution} ightarrow 	ext{Solid}$. $\Delta S $C$: $1 	ext{ mole of solid} ightarrow 2 	ext{ moles of aqueous ions}$. This process involves the dissolution of a solid,which significantly increases the disorder of the system. Thus,$\Delta S > 0$.$D$: $4 	ext{ moles of gas} ightarrow 2 	ext{ moles of gas}$. $\Delta S Therefore,the correct option is $C$.

Which of the following reactions has $\Delta S > 0$?

Similar Questions

For the following process $H_2O_{(l)} (1 \ bar, 373.15 \ K) \rightleftharpoons H_2O_{(g)} (1 \ bar, 373.15 \ K)$, identify the correct set of thermodynamic parameters.

If the enthalpy change for the transition of liquid water to steam is $30 \ kJ \ mol^{-1}$ at $27 \ ^oC,$ the entropy change for the process would be ............. $J \ mol^{-1} \ K^{-1}$

Two blocks of the same metal having same mass and at temperatures $T_1$ and $T_2$ respectively,are brought in contact with each other and allowed to attain thermal equilibrium at constant pressure. The change in entropy,$\Delta S,$ for this process is

For the reaction $NH_4Cl_{(s)} \rightarrow NH_{3(g)} + HCl_{(g)}$,the entropy change is ...... .

Which of the following is a state function?

Vedclass Test Series

Exam Paper Generator

Online Exam Module