Enthalpy Question

I would really appreciate it if someone could help me with this question. I kind of know the answer but I don't know how to answer it concisely for only 1 mark!

LiOH(s) -----> Li+(aq) + OH–(aq) ΔH = 21 kJ mol–1
(a) State why the standard enthalpy of formation of lithium is quoted as zero.

Thanks

for ya.

Original post by Lot7

I would really appreciate it if someone could help me with this question. I kind of know the answer but I don't know how to answer it concisely for only 1 mark!

LiOH(s) -----> Li+(aq) + OH–(aq) ΔH = 21 kJ mol–1
(a) State why the standard enthalpy of formation of lithium is quoted as zero.

Thanks

Something like Lithium is an element so it can't be broken down into anything else unlike OH which can be broken down into oxygen and hydrogen?

Original post by Lot7

I would really appreciate it if someone could help me with this question. I kind of know the answer but I don't know how to answer it concisely for only 1 mark!

LiOH(s) -----> Li+(aq) + OH–(aq) ΔH = 21 kJ mol–1
(a) State why the standard enthalpy of formation of lithium is quoted as zero.

Thanks

Read the definition of standard enthalpy of formation very carefully ...