Thermo + Bonding Flashcards

1
Q

What is mean bond enthalpy

A

Then enthalpy change to break 1 mol of bond

averaged over a range of compounds

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2
Q

how to calculate bonding breaking to forming

A

bond breaking (r) - bond forming (p)

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3
Q

why expect enthalpy of combustion is different to actual

A

there is a slight difference between the actual bond enthalpies and mean bond enthalpies

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4
Q

Describe the process of electrospray ionisation

State the equation of sample P

A

The sample is dissolved in a volatile solution

A needle is injected at high voltage

The sample gains a proton

P + H+ ——–> PH+

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