<Dd> R (T) = R (T 0) (1 + α Δ T), (\ displaystyle R (T) = R (T_ (0)) (1 + \ alpha \ Delta T),) </Dd> <P> where ΔT is the difference between T and T. For strongly temperature - dependent α, this approximation is only useful for small temperature differences ΔT . </P> <P> Temperature coefficients are specified for various applications, including electric and magnetic properties of materials as well as reactivity . The temperature coefficient of most of the reactions lies between - 2 & 3 </P> <Table> <Tr> <Td> </Td> <Td> This section may be confusing or unclear to readers . In particular, it's unclear whether this refers to a general negative temperature coefficient or concerning electrical conductivity specifically . Please help us clarify the section . There might be a discussion about this on the talk page . (January 2016) (Learn how and when to remove this template message) </Td> </Tr> </Table>

The temperature coefficient of most of the reaction lies between