In which of the following processes does the | vedclass

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

Question

(B) $(a) H_{2(g)} \longrightarrow 2H_{(g)}: \Delta n_g > 0$, so $\Delta S > 0$. $(b) H_2O_{(l)} \longrightarrow H_2O_{(s)}:$ The degree of randomness

Vedclass · Accepted Answer

Liquid water crystallizes to ice

Vedclass · Answer

(B) $(a) H_{2(g)} \longrightarrow 2H_{(g)}: \Delta n_g > 0$, so $\Delta S > 0$. $(b) H_2O_{(l)} \longrightarrow H_2O_{(s)}:$ The degree of randomness of $H_2O$ molecules decreases during the freezing of water into ice, so $\Delta S $(c)$ With an increase in temperature, the kinetic energy $(KE)$ of $H_2O$ molecules in ice increases, so $\Delta S > 0$. $(d) 2NaHCO_{3(s)} \longrightarrow Na_2CO_{3(s)} + CO_{2(g)} + H_2O_{(g)}:$ Here, $\Delta n_g > 0$, so $\Delta S > 0$. Therefore, entropy decreases when liquid water crystallizes into ice.

In which of the following processes does the entropy decrease?

Similar Questions

Which of the following is the correct expression for an irreversible process?

For the reaction $MgCO_3(s) \rightarrow MgO(s) + CO_2(g)$,the value of $\Delta S$ is:

$A$ heat engine is operating between $500 \ K$ and $400 \ K$. If the engine absorbs $100 \ J$ of heat,which of the following is an impossible amount of heat rejected by the engine (in $J$)?

The enthalpy change for the transition of liquid water to steam,$\Delta H_{vap} = 37.3 \ kJ \ mol^{-1}$ at $373 \ K$. The entropy change for the process is......$J \ mol^{-1} K^{-1}$.

Change in entropy is positive for

Vedclass Test Series

Exam Paper Generator

Online Exam Module