Atomisation energy Study guides, Class notes & Summaries

Lattice energy - - The enthalpy change when 1 mole of ionic compound is formed from its gaseous ions under standard conditions - It is the energy given out when ions of opposite charges comes together to form an ionic lattice Lattice energy is endothermic or exothermic? - - It is always exothermic because bonds are being formed (ionic bond) between oppositely charged ions, not broken Equation showing the formation of NaCl lattice - - Na^+(g) + Cl^-(g) > NaCl(s) The state of the opposite...

first ionization energy - The energy required to convert one mole of gaseous atoms into gaseous atoms with a single positive charge standard enthalpy of formation - the enthalpy change when 1 mole of a compound is formed from its elements in their standard states under standard conditions Standard Enthalpy of Atomisation - The enthalpy change when one mole of gaseous atoms is formed from an element in its standard state Lattice enthalpy - The enthalpy change that occurs when one mole of a ...

Endothermic reaction - correct answer To break bonds, the surroundings need to give energy to the molecule. The bonds gains energy, as they take in energy so have a positive sign. The system loses energy so gets colder Exothermic reaction - correct answer To make bonds, the molecule give energy to the surroundings. The bonds lose energy, as they give out energy so have a negative sign. The system gains...

first ionization energy : The energy required to convert one mole of gaseous atoms into gaseous atoms with a single positive charge standard enthalpy of formation : the enthalpy change when 1 mole of a compound is formed from its elements in their standard states under standard conditions Standard Enthalpy of Atomisation : The enthalpy change when one mole of gaseous atoms is formed from an element in its standard state Lattice enthalpy : The enthalpy change that occurs when one mol...

Standard enthalpy of formation ֎ -:- The enthalpy change when one mole of a compound is formed from its elements under standard conditions, with all substances in their standard states. Standard change of atomisation ֎ -:- The enthalpy change when one mole of gaseous atoms is formed from the element in its standard state under standard conditions. First ionisation energy ֎ -:- The enthalpy change needed to remove one electron from each atom in one mole of gaseous atoms to form on...

Lattice enthalpy The enthalpy change when one mole of an ionic compound is converted to gaseous ions. Enthalpy of atomisation The enthalpy change when one mole of gaseous atoms isformed from the element in its standard state. First electronaffinity The enthalpy change when one mole of gaseous atoms is converted into gaseous ions with a single negative charge. Enthalpy of solution The enthalpy change when one mole of a solute dissolves in water. Enthalpy of hydra...

GRMN final examWhich of the following is not one of Ian Kershaw's conclusions in his essay "Hitler's Power and Destruction"? A) There is nothing that stands as a positive artistic legacy of Hitler's reign. B) No governmental form or system which could serve as a possible model emerged from the Nazi regime. C) Hitler's final escape plan, thwarted by the Allies, reveals the inner flaws of his strategic and tactical thinking. D) Devoid of constructive, creative energy, articulating only e...

Edexcel a level design technology question paper 1 june 2023 june 2023 + mark scheme What is the product of primary alcohols and acified potassium dichromate using simple distillation? - ANS-Aldehydes Chlorine and cold NaOH - ANS-NaCl + NaClO + H2O Chlorine and hot NaOH - ANS-NaCl + NaClO3 + H2O Chloride and sulfuric acid possible products - ANS-HCl (misty fumes) Bromide and sulfuric acid possible products - ANS-SO2, HBr, Br2 (reddish-brown gas) Iodide and sulfuric acid possible pr...

Standard enthalpy of formation correct answer: enthalpy change when it is made from the stable form of its elements at standard condition combustion enthalpy correct answer: exothermic, so always negative atomisation enthalpy correct answer: endothermic, so always positive ∆H(rxn)= correct answer: ∑∆Hºf(products) - ∑∆Hºf(reactants) standard enthalpy of formation correct answer: change of enthalpy during the formation of one mole of the substance from its constituent ...

Which of the following is not one of Ian Kershaw's conclusions in his essay "Hitler's Power and Destruction"? A) There is nothing that stands as a positive artistic legacy of Hitler's reign. B) No governmental form or system which could serve as a possible model emerged from the Nazi regime. C) Hitler's final escape plan, thwarted by the Allies, reveals the inner flaws of his strategic and tactical thinking. D) Devoid of constructive, creative energy, articulating only ever wilder urge...