Please help me understan what i am supposed to do here...
Given that
P(g) + 3Cl(g) = PCl3(g) energy change = -983kjmol-1 P(s) + 3/2Cl2(g) = PCl3(g) energy change = -305kjmol-1 P(s) = P(g) energy change = +314kjmol-1
calculate the following bond energies:
a) P-Cl in PCl3
b) Cl-Cl in Cl2
i really have absolutley no idea what to do so some help would be much appreciated
What bonds (notice plural) are you forming in reaction one ? How much energy is being released to form these ? Therefore how much energy would be required to BREAK one of them ? Bond enthalpies are always quoted as positive as the definition is to break bonds. Question b you'll need to piece together reactions 2 and 3.
What bonds (notice plural) are you forming in reaction one ? How much energy is being released to form these ? Therefore how much energy would be required to BREAK one of them ? Bond enthalpies are always quoted as positive as the definition is to break bonds. Question b you'll need to piece together reactions 2 and 3.