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One mole of ice at 273 k or one mole of water at the same temperature which one have greater entropy and why?
The water has more entropy, because its atomic structure is less ordered than the atomic structure of the ice.
Under what condition can entropy decrease in a system?
First of all, entropy is the defined as the extent to which something is disordered. In chemistry, for entropy in a SYSTEM to decrease, the products of a reaction must be less disordered than the reactants. The extent of "disordered-ness" can be seen by the physical states of the substances. A gas is more disordered than a liquid, which is more disordered than a solid. So, an example of a reaction that leads to a decrease in entropy is: HCl(gas) +NH3(gas) -----> NH4Cl(solid) So you see, there are more gaseous molecules in the reactant side of the equation than in the product side, which means the products are less disordered than the reactants. ----------------------------------------------- However, one must note that if the entropy of a system(reaction) decreases, the entropy of the surroundings should increase. This is because change in TOTAL entropy(A) = change in entropy of SYSTEM(B) + change in entropy of SURROUNDINGS(C). It is a rule that A must increase in every case ( have a positive value). If the B is negative(a decrease in entropy), C must be positive(an increase in entropy) to keep the value of A positive.
What would represent an increase in entropy?
A change of state from solid to liquid, or liquid to gas, or directly solid to gas., all indicate an increase in entropy. Also an increase in moles from reactants to products. The Classic example being the thermal decomposition of calcium carbonate CaCO3(s) ==Heat==> CaO(s) + CO2(g) You have a gas liberated from a solid, so an increase in entropy. You also have one mole reactant increasing to two moles of product, so again an increase in entropy.
What does the ideal gas law allow a scientist to calculate that the other gas laws do not?
The ideal gas law is considered to be different from other equations of state for one or more of the following reasons: It cannot predict phase changes - in the ideal gas law, everything is a gas and stays a gas no matter what the temperature and pressure It does not take into account repulsion and attraction between molecules It does not take into account that actual atoms occupy volume - the ideal gas law essentially assumes point masses. It does not take into account the effect of orientation of polarized molecules - thus it is possible to get states in the real world that would be defined mathematically as "negative entropy" according to the ideal gas law. Example: as a thought experiment, a polar substance is cooled to absolute zero. At absolute zero it is now in a perfect crystalline state of zero entropy. At zero kelvin the system must be in a state with the minimum possible energy, and this statement of the third law holds true if the perfect crystal has only one minimum energy state. Entropy is related to the number of possible microstates, and with only one microstate available at zero kelvin, the entropy is exactly zero. If a magnetic field were now imposed, the substance would orient to an even more ordered state - a decrease in entropy below zero. (Since an ideal gas does not care about external magnetic fields, the system would be at zero entropy before the field was imposed).
What one of these has the highest density Mercury or wax?
Mercury
How can you use the word entropy in a sentence?
Well, I think you just have. But (assuming that this isn't a joke) if you want to see more examples of how the word should be used, try doing a web search for the term. Here's a good one: "Several entropic properties characteristic to these systems are deduced, and it is proved that alliances decrease international systems' entropy."
One of the following is the highest female voice part?
Soprano
What gaming systems can one get a wireless controller for?
One is able to get several different types of gaming systems with a wireless controller such as the following systems: On Live, XBOX 360, and the Nintendo Wireless.
Which one of the following ports of India handles the highest tonnage of import cargo?
mumbai
Which has the highest concentration of H plus ions?
It would help if there were at least one item following!
How do you use the word entropy in a sentence?
The madman steadily headed toward a state of entropic bliss as he went about his day singing to the flowers. (entropy is the tendency for a system to head towards a state of maximum randomness.)
What is the highest and the lowest castes of India?
In India the highest caste system and lowest caste systems are: Brahmans: priests and teachers {being the highest caste} Untouchables: the jobs no one else want to do {being the lowest}
Which of the following professions takes the highest amount of education to practice?
Definitely the last one. After that the 3rd one, then there all about the same after that
Which one of the following countries won the highest number of gold medals in the Beijing Olympics 2008?
china
According to the second law of thermodynamics does entropy increase in a cold system?
That depends on what you mean by "cold" system. Entropy in any system can do one of three things: increase, decrease, or remain constant. If the system is closed, then entropy will only ever increase. If the system is open, entropy within it can do any of the three, provided there is a corresponding change in entropy outside the system (energy must come from or go to somewhere to effect an entropy change). The absolute amount of energy in the system makes no difference to the entropy of it. It is whether you have an open or closed system that counts.
One mole of ice at 273 k or one mole of water at the same temperature which one have greater entropy and why?
The water has more entropy, because its atomic structure is less ordered than the atomic structure of the ice.
Which one of the following functional business systems supports the finance business function?
Information Technology for Managers
