There is at least one non spontaneous reactions occuring in the particular system. So someone or something has to shred energy in order to continue the procedure.
Entropy increases. In a reaction comprised of sub-reactions, some sub-reactions may show a decrease in entropy but the entire reaction will show an increase of entropy. As an example, the formation of sugar molecules by living organisms is a process that shows decrease in entropy at the expense of the loss of entropy by the sun.
No, because the entropy of the surroundings must increase more than the decrease in the water->ice transition, thus the net change in the entropy of the universe is positive, consistent with the second law.
no.
Please be aware that the change will be neither positive or negative. You see when "water" freezes the entropy will not change due the tempertaure of the area around it meaning the entropy will stay neutral. You are very welcome young man
To decrease the entropy of a static body, you would need to decrease the disorder or randomness of its particles. This can be achieved by cooling the body, which can lower the thermal motion of its particles and reduce their entropy. Other methods include applying pressure to order the particles or removing impurities that contribute to disorder.
Only by increasing the entropy of another system.
When disorder in a system increases, entropy increases. Entropy is a measure of the randomness or disorder in a system, so as disorder increases, the entropy of the system also increases.
If you include the student in the system, the entropy will increase, not decrease.
No, entropy is not always conserved in a closed system. Entropy can increase or decrease in a closed system depending on the processes happening within it.
In an isolated system, entropy can only increase or remain constant, but it cannot decrease.
You cannot reduce entropy because entropy increases (Second Law of Thermodynamics), if you could, we could have perpetual motion. When work is achieved energy is lost to heat. The only way to decrease the entropy of a system is to increase the entropy of another system.
Entropy increases. In a reaction comprised of sub-reactions, some sub-reactions may show a decrease in entropy but the entire reaction will show an increase of entropy. As an example, the formation of sugar molecules by living organisms is a process that shows decrease in entropy at the expense of the loss of entropy by the sun.
No, because the entropy of the surroundings must increase more than the decrease in the water->ice transition, thus the net change in the entropy of the universe is positive, consistent with the second law.
false
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.
The entropy of an isolated system never decreases because the second law of thermodynamics states that in a closed system, entropy tends to increase over time. This means that the disorder or randomness of the system will always tend to increase, leading to a higher overall entropy.
The reason that entropy increases is related to statistics. It is possible in theory that a process occurs in such a way that entropy decreases, but this is so unlikely that it will never happen in practice.