Recent questions in Physical Chemistry

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How can we design self-assembled supramolecular structures with high stability and selectivity for targeted drug delivery applications?

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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How can we use computational chemistry and molecular modeling to design a new drug that effectively binds to an enzyme in the body and inhibits its activity, without causing any unwanted side effects?

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the phase diagram of a binary mixture composed of X and Y at constant temperature and varying pressure? Specifically, determine the critical points and plot the equilibrium curves for solid-liquid and liquid-vapor phases.

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the amount of work done during an irreversible expansion of an ideal gas at constant temperature and pressure?

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the wavenumber (cm^-1) of the fundamental vibrational mode of carbon dioxide using Fourier transform infrared spectroscopy?

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the vibrational frequency of HCl molecule in its ground state?

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the vibrational frequency of CO2 molecule in cm-1 using infrared spectroscopy with a wavelength of 4.24 µm? (The molecular bond length can be assumed to be 116.3 pm)

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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How long would it take for a molecule of oxygen to diffuse through a membrane that is 2 mm thick at a given temperature and pressure? What factors affect the rate of diffusion for this particular gas?

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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How can we calculate the thermodynamic properties of a gas (such as internal energy, entropy, and free energy) by using different thermodynamic ensembles and statistical mechanical principles?

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the standard potential of a silver electrode in a 0.1 M silver nitrate solution at 25°C, given that the reduction half-reaction is Ag⁺(aq) + e⁻ → Ag(s)?

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the standard enthalpy change of combustion (ΔH°c) for propane (C3H8) gas at 298 K, given the balanced chemical equation: C3H8(g) + 5O2(g) -> 3CO2(g) + 4H2O(g)?

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the standard electrode potential for the reduction of Cu2+ to Cu at a temperature of 25°C? Use the half-reaction equation and the Nernst equation to calculate the potential.

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the standard cell potential for a galvanic cell made up of a silver electrode and a zinc electrode, where the concentration of silver ions is 0.01 M and the concentration of zinc ions is 1.0 M?

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the rate of diffusion of oxygen through a 2 cm thick slab of air at 25°C and 1 atm pressure? The diffusivity of oxygen is 0.20 cm^2/s.

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the rate of diffusion of oxygen in the air at standard temperature and pressure when the molecular weight of oxygen is 32 g/mol and the diffusion coefficient is 0.188 cm^2/s?

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the rate of diffusion of oxygen gas at 25°C and 1 atm pressure, if it diffuses through a platinum sheet with a thickness of 0.1 mm and a surface area of 10 cm²? The diffusion coefficient of oxygen in platinum is 2.2 x 10^-5 cm²/s.

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the rate of diffusion of nitrogen gas in air at 25°C and 1 atm pressure, if the molecular weight of nitrogen is 28 g/mol and the average velocity of the gas molecules is 500 m/s?

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the rate of diffusion of helium gas (He) in air at 25°C and a pressure of 1 atm?

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the rate of diffusion of carbon dioxide (CO2) gas in air at a temperature of 25°C and a pressure of 1 atm if the molar mass of CO2 is 44 g/mol?

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the probability that a system of two ideal gas particles in a closed container will have both particles in the same half of the container at a certain temperature? Use the canonical ensemble in statistical mechanics to calculate the probability.

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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