Recent questions in Physical Chemistry

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How does the type of catalyst and the reaction conditions affect the rate of hydrogenation of unsaturated fats and oils in food industry?

asked Feb 20 in Physical Chemistry by ChristalMahl (2.0k points)

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What is the glass transition temperature of polyvinyl chloride (PVC) and how does it affect its mechanical properties?

asked Feb 20 in Physical Chemistry by Von968188852 (2.0k points)

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What is the rate of a gas-phase reaction in which nitrogen dioxide decomposes into nitric oxide and oxygen gas at a rate constant of 2.0 x 10^-3 s^-1 when the concentration of nitrogen dioxide is 0.10 M and the reaction is carried out at 450 K?

asked Feb 20 in Physical Chemistry by NateDicks693 (1.8k points)

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What is the frequency (in cm⁻¹) of the stretching vibration of the C=O bond in a molecule of acetone (CH₃COCH₃) observed in the infrared spectrum at 1715 cm⁻¹?

asked Feb 20 in Physical Chemistry by Denny08T6070 (2.5k points)

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How does the frequency and intensity of infrared radiation relate to the types of molecular vibrations observed in a given compound? Provide specific examples to support your answer.

asked Feb 20 in Physical Chemistry by AveryJoris20 (2.0k points)

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How does the formation of hydrogen bonding affect the self-assembly of amphiphilic molecules in supramolecular chemistry?

asked Feb 20 in Physical Chemistry by AnaYdc643424 (1.8k points)

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What is the equilibrium constant expression for the following reaction at 298 K?H2(g) + I2(g) ⇌ 2HI(g)

asked Feb 20 in Physical Chemistry by FilomenaWago (1.8k points)

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What is the equilibrium constant (Kc) of the following chemical reaction at 25°C and how can it be interpreted?2NO2(g) ⇌ N2O4(g)

asked Feb 20 in Physical Chemistry by BlaineBeasle (2.0k points)

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What is the equilibrium constant (Kc) expression for the reaction N2(g) + O2(g) ⇌ 2NO(g)? If the initial concentrations for N2, O2, and NO are 0.25 M, 0.15 M, and 0.05 M, respectively, what is the value of Kc for the reaction at equilibrium?

asked Feb 20 in Physical Chemistry by Ina75H680861 (2.0k points)

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What is the equilibrium constant (Kc) expression for the following generic chemical reaction?aA(g) + bB(g) ⇌ cC(g) + dD(g)

asked Feb 20 in Physical Chemistry by ConcettaAmse (2.0k points)

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What is the equilibrium constant (Kc) expression for the following chemical reaction at 25°C and 1 atm pressure?2 SO2 (g) + O2 (g) ⇌ 2 SO3 (g)

asked Feb 20 in Physical Chemistry by ReinaldoAlng (1.8k points)

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How does the energy of light affect the rate of a photochemical reaction, and what is the role of excited states in this process? Provide specific examples of photochemical reactions and their significance in industry or daily life.

asked Feb 20 in Physical Chemistry by WPRSheila585 (1.4k points)

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How does the electronic structure of a molecule affect its molecular geometry?

asked Feb 20 in Physical Chemistry by AlineBentham (2.1k points)

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What is the electronic configuration of the oxygen molecule (O2) and how does this configuration result in the observed bond length of the molecule?

asked Feb 20 in Physical Chemistry by ElvaL9406057 (2.3k points)

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What is the electronic configuration of the carbon monoxide (CO) molecule? Using quantum mechanics principles, calculate the bond order and predict the bond length of the CO molecule.

asked Feb 20 in Physical Chemistry by OliveMatthae (2.1k points)

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What is the effect of temperature on the electrical conductivity of an ionic liquid consisting of tetraethylammonium chloride and ethylene glycol?

asked Feb 20 in Physical Chemistry by EmmettVerdin (2.2k points)

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What is the efficiency of a photosensitizer in converting light energy to a reactive species? Provide a brief explanation of the photochemical mechanism involved.

asked Feb 20 in Physical Chemistry by RodolfoKello (2.0k points)

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How does the wavelength of light affect the efficiency of a photochemical reaction? Use experimental data to compare the efficiency of a photochemical reaction using light with a wavelength of 400 nm and a wavelength of 500 nm.

asked Feb 20 in Physical Chemistry by AntoinetteWo (2.0k points)

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What is the effect of the anion type on the viscosity of different ionic liquids at varying temperatures and pressure?

asked Feb 20 in Physical Chemistry by JaninaDohert (2.2k points)

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What is the effect of temperature on the viscosity of 1-ethyl-3-methylimidazolium ethylsulfate ([EMIM][EtSO4]) ionic liquid?

asked Feb 20 in Physical Chemistry by BradCrandall (2.5k points)

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