Chemical element of an element to exist in one of many structural forms is known as 'allotropy'. The standard state, also known as the reference state, of an element is defined as its thermodynamically most stable state at a pressure of 1 bar and a given temperature (typically at 298.15 K). In thermochemistry, an element is defined to have an enthalpy of formation of zero in its standard state. For example, the reference state for carbon is graphite, because the structure of graphite is more stable than that of the other allotropes. Several kinds of descriptive categorizations can be applied broadly to
What Time Is Love? riff from "What Time Is Love?". In 1993 "What Time Is Love?" was covered by U.K. based American Noise/Art Rock band The God Machine. The track appeared as a B- side on their limited silver vinyl "Home" single and a promo CD. In 1997 a trance cover-version was released by German producer Talla 2XLC and in 1998 Choci and Mark Sinclair released their own hard trance reworking entitled "What is Love?". Reviewing Drummond's book "45" for "The Observer" in 2000, Steven Poole labelled "What Time Is Love?" an "epic pop masterpiece". "The Observer" also described the "Pure Trance Original" as