Questions by RozellaBranc

0 votes

1 answer 48 views

Calculate the enthalpy of oxidation of methane gas ($CH_4$) when it is burned completely in the presence of excess oxygen gas ($O_2$), given that the standard enthalpy of formation of $CH_4$ is -74.8 kJ/mol and the standard enthalpy of formation of $H_2O$ is -285.8 kJ/mol.

asked Jan 23 in ThermoChemistry

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1 answer 44 views

A beaker of water is placed on a hot plate, and the temperature is gradually increased. Write an equation for the rate of change of entropy with respect to time during this process, assuming the system is not in equilibrium. Use the equation to determine the rate of entropy production in the water as it is heated from 25°C to 100°C at a constant rate of 2°C/min.

asked Jan 22 in Physical Chemistry

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1 answer 37 views

Where can one see object permanence in children?

asked Jan 20 in Psychology

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1 answer 6 views

Where did Elizabeth Loftus conduct her research on eyewitness testimony?

asked Jan 17 in Psychology

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1 answer 16 views

Who developed attachment theory?

asked Jan 13 in Psychology

0 votes

1 answer 23 views

How does deeper material cause convection in the mantle?

asked Dec 30, 2024 in Science

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1 answer 10 views

The medieval catapult has a heavy ballast on one end and what on the other end?

asked Dec 27, 2024 in Science

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