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How does the size and shape of nanoparticles affect their photochemical properties? Provide a detailed explanation using specific examples.

asked Feb 25 in PhotoChemistry by TheScientist (138k points)

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How does the strength of adsorption of gases on solid surfaces vary with temperature? Provide detailed experimental evidence to support your answer.

asked Feb 25 in Surface Chemistry by TheScientist (138k points)

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How does the strength of the metal surface affect the selectivity of hydrocarbon oxidation on the surface?

asked Feb 25 in Surface Chemistry by TheScientist (138k points)

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What is the standard enthalpy change for the phase transition from liquid water to steam at 100°C and 1 atm pressure, given that the molar heat of vaporization of water is 40.7 kJ/mol?

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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How does the strength and nature of intermolecular interactions affect the solubility of a solute in a particular solvent?

asked Feb 25 in Quantum Chemistry by TheScientist (138k points)

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What is the standard enthalpy change for the neutralization reaction between hydrochloric acid and sodium hydroxide at 25℃? The reaction equation is HCl (aq) + NaOH (aq) → NaCl (aq) + H2O (l).

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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What is the effect of temperature on the solubility of a solid in a liquid solvent?

asked Feb 25 in Physical Chemistry by TheScientist (138k points)

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How does the size and shape of nanomaterials affect their catalytic activity in various chemical reactions?

asked Feb 25 in Materials Chemistry by TheScientist (138k points)

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What criteria can be used to predict the stability of inorganic compounds and how do they influence the formation and properties of these compounds?

asked Feb 25 in Inorganic Chemistry by TheScientist (138k points)

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What is the standard enthalpy change for the combustion of methane (CH4) at 298 K and 1 atm pressure, given that the reactants and products are in their standard states?

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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How does the size and shape of quantum dots affect their photochemical properties?

asked Feb 25 in PhotoChemistry by TheScientist (138k points)

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How does the size of metal nanoparticles affect their catalytic activity in the selective oxidation of hydrocarbons on metal surfaces?

asked Feb 25 in Surface Chemistry by TheScientist (138k points)

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What factors affect the stability of emulsions in the context of Surface Chemistry? How do these factors interact with each other and influence the overall stability of the emulsion system?

asked Feb 25 in Surface Chemistry by TheScientist (138k points)

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What is the standard potential of the Zn/Zn²⁺ electrode with respect to the standard hydrogen electrode (SHE), given that the reduction potential of Zn²⁺ is -0.761 V?

asked Feb 25 in ElectroChemistry by TheScientist (138k points)

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What is the effect of pH on the stability of oil-in-water emulsions?

asked Feb 25 in Surface Chemistry by TheScientist (138k points)

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How do the size and shape of metallic nanoparticles affect their catalytic activity in the conversion of carbon dioxide to carbon monoxide?

asked Feb 25 in Materials Chemistry by TheScientist (138k points)

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What is the standard enthalpy change of vaporization of water at 373 K according to the following data:H2(g) + O2(g) → H2O(l) ΔH° = -285.8 kJ/molH2O(l) → H2O(g) ΔH° = +40.7 kJ/molNote: The answer should be in units of kJ/mol.

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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What factors affect the solubility of inorganic salts in water, and how can we predict the solubility of a particular salt? Use specific examples and experimental data to support your answer.

asked Feb 25 in Inorganic Chemistry by TheScientist (138k points)

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What is the standard enthalpy change of combustion for methane (CH4) gas at 298K and 1 atm pressure?

asked Feb 25 in Quantum Chemistry by TheScientist (138k points)

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What factors affect the stability of a colloidal solution and how can the coagulation of the colloidal particles be prevented or reversed?

asked Feb 25 in Surface Chemistry by TheScientist (138k points)

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