In which of the following processes is Delta | vedclass

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(C) Entropy $(\Delta S)$ is a measure of the randomness or disorder of a system.For a process to have a positive $\Delta S$,the disorder of the system

Vedclass · Accepted Answer

$H_2O_{(l)} \rightarrow H_2O_{(g)}$

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(C) Entropy $(\Delta S)$ is a measure of the randomness or disorder of a system.For a process to have a positive $\Delta S$,the disorder of the system must increase.Phase transitions from liquid to gas involve a significant increase in entropy because gas molecules have much higher freedom of movement than liquid molecules.In the process $H_2O_{(l)} \rightarrow H_2O_{(g)}$,liquid water turns into water vapor,which is a state of higher disorder.Therefore,$\Delta S > 0$ for this process.

In which of the following processes is $\Delta S$ positive?

Similar Questions

In which of the following processes does entropy increase?

Let us consider a reversible reaction at temperature,$T$. In this reaction,both $\Delta H$ and $\Delta S$ were observed to have positive values. If the equilibrium temperature is $T_e$,then the reaction becomes spontaneous at:

For a sample of a perfect gas,when its pressure is changed isothermally from $p_i$ to $p_f$,the entropy change is given by:

Identify the correct statement regarding a spontaneous process.

For which of the following processes is $\Delta S$ negative?

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