The water cycle is driven primarily by energy from the sun. This solar energy drives the cycle by evaporating water from the oceans, lakes, rivers, and even the soil. Other water moves from plants to the atmosphere through the process of transpiration.
A piston-cylinder device contains helium gas, during a reversible, isothermal process the entropy of the helium will <u>sometimes </u>increase.
As entropy of an ideal gas depends on pressure and temperature . Hence , entropy change during isothermal process if pressure changes . Enropy changes whenever there is a transfer of heat . The change in entropy is the heat added divided by the temperature at which the transfer took place .
A piston-cylinder is a moving device that is made tight by the piston rings. It moves inside in a cylinder in the form of liquid and later expands and then contracts.
To learn more about reversible isothermal process
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<span> Positive Ion - Occurs when an atom loses an electron (negative charge) it has more </span>protons<span> than electrons.</span>
Fluorine has B. 7 valence electrons in the outermost energy level