Answer:
The net entropy change of the entire system is increasing during a real isothermal expansion.
Explanation:
The net entropy of a system is always zero for reversible process, and it is positive for irreversible process. It is also important to notice that the net entropy is the change of total entropy, that means.
In a reversible isothermal process the total entropy change is 0, where the increase of entropy of the system has the same magnitude as the decrease of the entropy of the surroundings.
But in a real isothermal process the magnitude of the entropy lost by the surroundings is less than the magnitude of entropy gained by the system, thus we have irreversible process so the net entropy is always positive.
In case of a gas for example where we have isothermal expansion, the work done is by the gas, causing a heat loss by the surroundings. It is that temperature difference that will make the entropy lost by the surroundings less than the magnitude of entropy gained by the gas.
Answer what are you asking
Explanation:
CO2 is produced during respiration by mitochondria.
To know why there is more CO2 in the air that you breathe out than the CO2 which you inhale, we have to know that the carbon which we breathe out as carbon dioxide comes from the waste products (the carbon in the food we eat) like the carbohydrates, fat, and protein which converted in the body by biochemical pathways to glucose. the end products of oxidation of glucose are water and carbon dioxide. This carbon dioxide which dissolved in the human blood is carried to the air in the lung by circulation before it exhales.
Answer:
the answer is 10
Explanation:
Al2 is 2 atoms by itself
(SiO3)2 is 8 because Si is a single atom and O3 is 3 oxygen atoms but because of the subscript outside of the parentheses it doubles and becomes 2 and 6 respectively
Answer: Bubbles formed would be evidence that a chemical reaction took place when the solutions were combined.
Explanation:
As it is given that both 
and HCl chemically combine together leading to the formation of NaCl, water and carbon dioxide gas. As the gas is forming and its formation will also form bubbles into the solution.
This formation of bubbles actually indicate that a chemical reaction has taken place. As molecules of a gas are held by Vander waal forces so, this gas will readily escape into the atmosphere.
Thus, we can conclude that bubbles formed would be evidence that a chemical reaction took place when the solutions were combined.
