Which kind of standard enthalpy change is always negative? | StemPy Lab

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Which kind of standard enthalpy change is always negative? | StemPy Lab

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Which kind of standard enthalpy change is always negative?

ChemistryEasyHigh School (11–12)Chemical Thermodynamics › Enthalpy and Hess's Law

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Which kind of standard enthalpy change is always negative?

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← Splitting one mole of a gas X₂ into two moles of X takes in 63.5 kJ. Four moles of X now pair up into X₂. What is Δ H for this change?For KCl, the lattice enthalpy is +717 kJ/mol and the hydration enthalpy of its ions is -699 kJ/mol. What happens when KCl dissolves in water? →

More onChemical Thermodynamics › Enthalpy and Hess's Law

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Why is the enthalpy of vaporisation of a liquid much larger than its enthalpy of fusion?Hard
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Splitting one mole of a gas X₂ into two moles of X takes in 63.5 kJ. Four moles of X now pair up…Medium
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Which of these has a standard enthalpy of formation of zero?Easy

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