<Tr> <Td> Iron (II) sulfide </Td> <Td> Solid </Td> <Td> FeS </Td> <Td> − 102 </Td> </Tr> <Tr> <Td> Pyrite </Td> <Td> Solid </Td> <Td> FeS </Td> <Td> − 178 </Td> </Tr> <Tr> <Td_colspan="4"> Lead </Td> </Tr> <Tr> <Td> Lead </Td> <Td> Solid </Td> <Td> Pb </Td> <Td> 0 </Td> </Tr>

Standard enthalpy of formation of zero at 25 c and 1 atm