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One mole of a particular bond is broken in the gas phase.

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โˆ™ 2010-07-05 00:33:33
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Q: What is average bond enthalpy?
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What is meant by the term average bond enthalpy?

Average bond enthalpy refers to the amount of energy required to break a mole of bond between two atom sin the gaseous state, average across similar compounds containing the bond.

How bond formation and bond breaking related to enthalpy?

Enthalpy is the measurement of total energy change of a reaction. The energy of bond formation and bond breaking can be used to calculate the bond enthalpy of the reaction. Bond enthalpy is the enthalphy change when 1 mol of bond is broken. Therefore the general equation to calculate the enthalpy change is energy of bond broken subtract by energy of bond formation.

The average bond enthalpy for a double bond is 614 and that of a single bond is 348 Estimate the energy needed to break only the bond of the double bond of 2-butene?


What is the relationship between enthalpy of atomisation of hydrogen and the bond dissociation enthalpy of the H-H bond?

the enthalpy of atomisation of hydrogen is equal and (in principle) identical to the bond dissociation enthalpy of the H-H bond. However, IF the first is measured by calorimetry and the second by spectrometry there might be a systematic difference.

Bond enthalpy is always?


What is Molar bond enthalpy?

Molar bond enthalpy shows the change in a bond association. For example, if one mole of bond is broken, the energy change that results is DHd (degree).

How does lattice energy differs from bond enthalpy?

Bond enthalpy is the energy required to break a chemical bond whereas lattice energy is the enthalpy of formation of one mole of an ionic compound from gaseus ions under standard conditions.

Is bond enthalpy and energy needed for bond formation is same for all the compounds?


What is the mean bond enthalpy of nitrogen?

945.33 kJ/mol

What is the relationship between metallic bond strength and enthalpy of vaporization?

Metallic bond strength refers to the amount of energy as heat required to vaporize the metal. The enthalpy of vaporization is defined as the amount of energy absorbed as heat when a specified amount of substance vaporizes at constant pressure. Metallic bond strength increases as the enthalpy increases.

What is it called when bonds between atoms form or break?

bond enthalpy changes

What is the relationship between the enthalpy of vaporization of a metal and the strength of the bonds that hold the metal together?

The enthalpy of vaporization reflects all of the variables in metallic bond strength

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