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adsorption means that the molecules of one phase are present in higher concentration at the surface of the second phase.
ex.inert gases on charcoal
when the temperature is increasing the adsorption decreases.so , we can say the adsorption is always exothermic.
Wiki User
∙ 14y ago
Wiki User
∙ 9y agoDG = DH - T DS
adsorption leads to decrease in entropy DS is negative because the adsorbate molecules gets lesser opportunity to move about on the surface of adsorbent also since adsorption is Spontaneous Process DH > TDS. So DG is negative
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Does physical adsorption have a low adsorption enthalpy?
yes it does...even though physical adsorption is an exothermic reaction, its enthalpy of adsorption is pretty low aroun 20 to 40 kJ/mol
Is adsorption a chemical process in which one substance is taken up by another?
Is adsorption a chemical process in which one substance is taken up by another?
What is exothermic process?
Exothermic is the process that exert heat or giving out energy to surrounding. Example of exothermic process such as condensing of steam or burning of fuel.
Are Anions are associated with exothermic or endothermic process?
Anion are associated with exothermic process.
Is burning leaves a endothermic or exothermic process?
Exothermic
Does physical adsorption have a low adsorption enthalpy?
yes it does...even though physical adsorption is an exothermic reaction, its enthalpy of adsorption is pretty low aroun 20 to 40 kJ/mol
Is adsorption a chemical process in which one substance is taken up by another?
Is adsorption a chemical process in which one substance is taken up by another?
Why physical adsorption is reversible process?
adsorption is processs of accumulation of liquid/gases on solid surface. reversible adsorption is seen in physical adsorption where increase in pressure increases the adsorption and decrease in pressure decrease adsorption of molecules to surface that is desorption takes place
Is wax in a candle burning an exothermic process or endothermic?
Exothermic process
What is exothermic process?
Exothermic is the process that exert heat or giving out energy to surrounding. Example of exothermic process such as condensing of steam or burning of fuel.
Is the process feeling cold exothermic or endothermic?
Exothermic/endothermic is a process not a feeling.
Is burning alcohol an exothermic or endothermic process?
Exothermic
Is evapouration an exothermic or endothermic process?
Crystallization is considered an exothermic process. Hand warmers use the process of sodium acetate crystallization to produce heat.
Are Anions are associated with exothermic or endothermic process?
Anion are associated with exothermic process.
Is burning leaves a endothermic or exothermic process?
Exothermic
Is kaolin a physical or a chemical process?
Adsorption on kaolinite is physical
Is bond breaking an endothermic or exothermic process?
Breaking bonds produces energy making it an exothermic process.
