No, it is not true.
In the stratosphere, the temperature generally remains constant or may even slightly increase with increasing altitude. This is due to the absorption of ultraviolet radiation by the ozone layer, which warms the stratosphere.
No, helium does not form a basic solution in water. Helium is a noble gas and is largely inert, meaning it does not react with water or other substances to form ions. Therefore, it does not contribute to the acidity or basicity of a solution. Helium remains dissolved in water as a gas without altering the pH.
At equilibrium, the concentration of reactants and products remains constant, as the rates of the forward and reverse reactions are equal. The equilibrium constant (K) also remains constant at a specific temperature. The Gibbs free energy of the system is at a minimum but remains constant at equilibrium.
When more solvent is added to a solution, the concentration of the solute decreases. This is because the total volume of the solution increases while the amount of solute remains constant, resulting in a more diluted solution.
pH is considered an intensive property because it does not depend on the amount of substance present in a solution. It is a measure of the concentration of hydrogen ions (H⁺) in a solution, which remains constant regardless of the volume or mass of the solution. Therefore, even if you dilute or concentrate a solution, the pH will adjust accordingly, but it will still reflect the inherent properties of the solution itself.
Molality of a solution remains constant as mass of a solution independent of temperature.
With a few exceptions, it remains relatively constant.
The dissociation constant of ethanol (C2H5OH) is not applicable as it does not dissociate into ions in aqueous solution. Ethanol remains as a neutral molecule in solution.
It doesn't
It doesn't
It doesn't
In the stratosphere, the temperature generally remains constant or may even slightly increase with increasing altitude. This is due to the absorption of ultraviolet radiation by the ozone layer, which warms the stratosphere.
Increasing the speed of an object does not affect that object's mass. Mass is an intrinsic property of an object and remains constant regardless of its speed.
No, helium does not form a basic solution in water. Helium is a noble gas and is largely inert, meaning it does not react with water or other substances to form ions. Therefore, it does not contribute to the acidity or basicity of a solution. Helium remains dissolved in water as a gas without altering the pH.
The entropy does not remains constant if the system is not isolated.
Increasing the number of parallel circuits in an electrical system does not affect the voltage. Voltage remains constant across all parallel circuits in the system.
It remains constant since no liquid or solid escapes. However, it can also be argued that the total mass drops, since the surface of the solute evaporates, reducing the amount of substance in the solution.