Respuesta :
Answer: 1. Water freezing : [tex]\Delta S[/tex] is -ve.
2. Water evaporating : [tex]\Delta S[/tex] is +ve.
3. Crystalline urea dissolving : [tex]\Delta S[/tex] is +ve.
4. Assembly of the plasma membrane from individual lipids: [tex]\Delta S[/tex] is -ve.
5. Assembly of a protein from individual amino acids: [tex]\Delta S[/tex] is -ve.
Explanation:
Entropy is defined as the measurement of degree of randomness in a system.
It is represented by symbol S and we can only measure a change in entropy which is given by [tex]\Delta S[/tex].
If there is decrease in randomness , the sign for [tex]\Delta S[/tex] is -ve and If there is increase in randomness , the sign for [tex]\Delta S[/tex] is +ve.
1. Water freezing: Entropy decreases as we move from liquid state to to solid state and thus [tex]\Delta S[/tex] is -ve.
2. Water evaporating : Entropy increases as we move from liquid state to gaseous state and thus [tex]\Delta S[/tex] is +ve.
3. Crystalline urea dissolving : The molecules convert from solid and ordered state to aqueous phase and random state. Thus the entropy increases and thus [tex]\Delta S[/tex] is +ve.
4. Assembly of the plasma membrane from individual lipids: random lipids are associating to form a single large polymer and thus entropy decreases and thus [tex]\Delta S[/tex] is -ve.
5. Assembly of a protein from individual amino acids: random amino acids are associating to form a single large polymer and thus entropy decreases and thus [tex]\Delta S[/tex] is -ve.
