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Why does the entropy of water increase as it warms from 0 degrees to 4 degrees?
Wiki User
∙ 11y ago
Heat (in water) is random molecular motion, so greater heat equals greater disorder, hence more entropy.
Wiki User
∙ 11y ago
The increase in entropy of water as it warms from 0 degrees to 4 degrees is due to the water molecules gaining kinetic energy and becoming more disordered. At higher temperatures, the molecules have more freedom of movement and can explore a greater number of microstates, leading to an increase in entropy.
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Will this entropy change by positive or negative water heating on a stove?
The entropy, S, will increase with temperature. If there's more kinetic energy in the pot, and the water molecules are flying around faster and faster as a result, there's more chaos and disorder, so a higher value of entropy.
Which of the following has the highest entropy Water Ice Water solution or Water vapor?
Water vapor has the highest entropy because gases generally have higher entropy compared to liquids or solids at the same temperature. Entropy tends to increase with the randomness or disorder of the molecules, so the highly disordered state of water vapor results in higher entropy.
Can entropy effect osmosis?
Entropy itself does not directly affect osmosis. In osmosis, the movement of solvent molecules across a semi-permeable membrane is driven by a concentration gradient, not entropy. Entropy is a measure of disorder in a system and is related to the randomness of molecular movement.
Which would represent an increase in entropy?
thawing
which of the following reaction would have an increase in entropy?
CH4(g) + H2O(g) CO(g) + 3H2(g)
Is water vaporizing entropy?
When water vaporizes, it increases in entropy because it transitions from a more ordered, liquid state to a more disordered, gaseous state. This increase in disorder leads to a higher entropy of the system.
When water becomes ice the entropy decreases does this contradict the second law?
No, the decrease in entropy of water turning into ice does not violate the second law of thermodynamics. The second law states that the total entropy of an isolated system can never decrease, but entropy can decrease locally within the system as long as there is a corresponding increase in entropy elsewhere. In the case of water turning into ice, the decrease in entropy of the water molecules is offset by an increase in entropy in the surroundings.
Will this entropy change by positive or negative water heating on a stove?
The entropy, S, will increase with temperature. If there's more kinetic energy in the pot, and the water molecules are flying around faster and faster as a result, there's more chaos and disorder, so a higher value of entropy.
What is the change in entropy when an icicle melts at 2 degrees Celsius?
The change in entropy when an icicle melts at 2 degrees Celsius is positive because the solid ice is transitioning to liquid water, which has more disorder and randomness at the molecular level. The increased molecular motion and randomness in the liquid state contribute to an overall increase in entropy during the melting process.
Which of the following has the highest entropy Water Ice Water solution or Water vapor?
Water vapor has the highest entropy because gases generally have higher entropy compared to liquids or solids at the same temperature. Entropy tends to increase with the randomness or disorder of the molecules, so the highly disordered state of water vapor results in higher entropy.
When water becomes ice and the entropy decreases does this contradict the second law of thermodynamics?
No, the second law of thermodynamics allows for local decreases in entropy as long as there is a greater increase in the entropy of the surroundings, maintaining a net increase in total entropy. In the case of water freezing into ice, the decrease in entropy of the water molecules is accompanied by an increase in the entropy of the surroundings, such as the heat released to the environment.
Can entropy effect osmosis?
Entropy itself does not directly affect osmosis. In osmosis, the movement of solvent molecules across a semi-permeable membrane is driven by a concentration gradient, not entropy. Entropy is a measure of disorder in a system and is related to the randomness of molecular movement.
Which would represent an increase in entropy?
thawing
What is the change of entropy when an icicle melts at 2 degrees Celsius?
The change in entropy when an icicle melts at 2 degrees Celsius is positive. This is because the solid ice undergoes a phase change to become liquid water, increasing the randomness and disorder of the molecules, leading to a higher entropy.
which of the following reaction would have an increase in entropy?
CH4(g) + H2O(g) CO(g) + 3H2(g)
How does the entropy of the system change when equal volumes of ethanol and water are mixed to form a solution?
The mixing of ethanol and water leads to an increase in entropy because the two liquids become more randomly dispersed at the molecular level compared to when they were separate. The increase in disorder allows for more ways to arrange the molecules, resulting in higher entropy of the system.
Which has greater entropy liquid water at 0 degrees C or ice at 0 degrees C?
The water. This is because it has greater positional disorder; if you know the position of one molecule you can say much less about the positions of all the others than you can in an ice crystal. On the other hand, if we are maintaining the system at constant temperature and pressure, then at 0C the contribution to the entropy of the universe because of the water is the same whether it is liquid or solid. This is because when water freezes it give out a latent heat, increasing the entropy of its surroundings, which at 0C exactly cancels the ice's lower entropy.
