Questions by RenaUxo07372

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1 answer 24 views

Calculate the standard enthalpy change for the phase transition reaction of solid carbon dioxide (dry ice) at -78.5°C to gaseous carbon dioxide at 1 atm and 25°C given that the enthalpy of formation of solid carbon dioxide and gaseous carbon dioxide are -393.5 kJ/mol and -393.5 kJ/mol, respectively.

asked 2 days ago in Chemical thermodynamics

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1 answer 24 views

How does changing the pH of a solution affect the equilibrium position of a redox reaction between copper and silver ions? Provide a detailed explanation with chemical equations and the relevant equilibrium constants.

asked 2 days ago in Chemical equilibrium

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1 answer 40 views

A student needs to determine the diffusion coefficient of a gas at a given temperature and pressure using Graham's law of diffusion. The student has the necessary equipment to measure the rate of diffusion of the gas and the molecular weight of the gas is known. Determine the diffusion coefficient of the gas.

asked Jan 22 in Physical Chemistry

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1 answer 6 views

Why did Harlow's monkey study challenge behaviourist theories?

asked Jan 17 in Psychology

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1 answer 7 views

Where do feature detection theories suggest processing of visual information occurs?

asked Jan 17 in Psychology

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1 answer 59 views

How is empowerment theory used in community psychology?

asked Jan 15 in Psychology

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1 answer 19 views

What is the self-concept?

asked Jan 14 in Psychology

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1 answer 23 views

Each muscle fiber contains hundreds of organelles called what?

asked Dec 30, 2024 in Science

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1 answer 29 views

According to the first law of thermodynamics, what can neither be created nor destroyed?

asked Dec 30, 2024 in Science

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