In an isolated system, entropy can only increase or remain constant, but it cannot decrease.
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.
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 tends to increase in a system.
"Entropy decreases in a closed system over time." "Entropy only applies to physical systems, not chemical or biological systems." "Entropy is a measure of disorder, not the amount of energy in a system." "Entropy can be negative, indicating a more ordered state."
An isolated system is one in which no external forces act. answer2. Energy and mass remains constant in an isolated 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.
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 tends to increase in a system.
There are several different formulations of the Second Law of Thermodynamics; they sound quite different, but actually it turns out they are equivalent.One the them goes something like, "In a closed system, entropy can increase, but it can never decrease".
Only by increasing the entropy of another system.
Assuming you mean can entropy be reduced; the answer is yes. Only in an open system such as our planet. The universe is a closed systems. The entropy of the universe cannot be reduced. Chemical changes can reduced entropy in an open system. When gas turns into a liquid or when a liquid turns into a solid; entropy is reduced.
That depends on how you define "level of entropy". Usually the term refers to the degree of randomness in a system. If the system is defined as a deck of cards, then the level of entropy will depend on how randomized the cards are. A standard deck comes with the cards in a pre-set order for which the entropy would be considered zero (perfect order). Any deviation from that initial order would then increase the level of entropy; it is thus necessary to not only state what the system is (a deck of cards) but to also state the condition of the system (how well shuffled the cards are) before you can determine the level of entropy of the system.
A decrease in entropy typically occurs in processes that involve the organization of matter or energy, such as the formation of ice from water or the crystallization of a substance from a solution. In these cases, particles become more ordered, resulting in a lower entropy state. Additionally, when energy is added to a system in a controlled manner, such as cooling a gas, it can lead to reduced disorder and lower entropy. However, according to the second law of thermodynamics, the total entropy of an isolated system can never decrease; it can only decrease locally at the expense of increasing the overall entropy elsewhere.
What is the first law of thermodynamics? The first law of thermodynamics states that energy cannot be created or destroyed, only transformed from one form to another. What is entropy? Entropy is a measure of the disorder or randomness in a system. In thermodynamics, entropy tends to increase in isolated systems over time. What is the difference between heat and temperature? Heat is the energy transferred between two objects due to a temperature difference, while temperature is a measure of the average kinetic energy of the particles in a substance.
"Entropy decreases in a closed system over time." "Entropy only applies to physical systems, not chemical or biological systems." "Entropy is a measure of disorder, not the amount of energy in a system." "Entropy can be negative, indicating a more ordered state."
No, entropy is a state function, which means it depends only on the initial and final states of a system and not the path taken to reach those states.
!1. Evolution is a fact and the theory of evolution by natural selection explains much of this fact.2. The second law of thermodynamics is not violated by evolutionary theory as the second law only applies to closed systems and the earth is not a closed system. Ask any creationist to name the other laws of thermodynamics and get a blank stare for an answer.