Answers by IrwinDeBoos5

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Calculate the standard enthalpy change for the reaction: 2C2H5OH(l) + 9O2(g) -> 6CO2(g) + 8H2O(l) given that the standard enthalpy of formation for C2H5OH(l) is -278 kJ/mol, for CO2(g) is -394 kJ/mol and for H2O(l) is -286 kJ/mol.

answered 2 days ago in Chemical thermodynamics

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Calculate the bond energy of O2 molecule in kJ/mol, given that the bond energy of O-H is 464 kJ/mol and the bond energy of H-H is 432 kJ/mol.

answered Jan 23 in Chemical reactions

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57 views

Calculate the amount of heat required to raise the temperature of 50 g of water from 25°C to 100°C, given the specific heat capacity of water is 4.18 J/g°C.

answered Jan 23 in Chemical thermodynamics

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36 views

How does the Selective Exposure Theory relate to persuasion?

answered Jan 20 in Psychology

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25 views

In contrast, how does person-centred theory see emotional difficulties?

answered Jan 20 in Psychology

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What is a criticism of the ecological systems theory?

answered Jan 16 in Psychology

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20 views

Why do we use mental imagery according to cognitive psychology?

answered Jan 15 in Psychology

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17 views

What is a placebo effect?

answered Jan 13 in Psychology

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5 views

Where are the two tonsils located?

answered Jan 8 in Science

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52 views

What two layers is the skin made of?

answered Jan 8 in Science

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34 views

What is the sac-like organ at the end of the esophagus?

answered Jan 7 in Science

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