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What is meant by 1st ionisation energy?

The energy required to remove an electron from 1 mole of gaseous atoms to form 1 mole of gaseous 1+ ions

Answered by Tiffany Z. • Chemistry tutor

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Why is a water molecule non-linear?

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Explain why the first ionisation energy of sulphur is lower than that of phosphorus.

Answered by Lana R.

The equilibrium N2O4 (g) -->--< 2NO2 (g) is set up when N2O4 dissociates. When 0.0370 moles of N2O4 dissociates at 25 degrees in a 0.5dm3 sealed container, 0.0310 moles of N2O4 remains at equilibrium. Calculate the value of Kc for this reaction.

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Why does the first ionisation energy of atoms generally increase across a period?

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