11. Specific gravity is the weight or mass of a unit volume of wood,and specific gravity the ratio of the density of wood to that of water
14.Typically,changing a substance's state of matters DOES change its density as well --although within a given state of matter,density is unlikely to vary greatly.
14.Typically,changing a substance's state of matters DOES change its density as well --although within a given state of matter,density is unlikely to vary greatly.
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•Mmax is maximum moisture content and Gw is the specific gravity of wood substance, equal to approximately 1.54
2. What happens to a substance's density if it changes state from solid to liquid?
•For most substances, the change from a solid to a liquid state does not mean a big change in volume. This is because the particles stay approximately the same distance apart. This means that the density of a substance, for example iron, does not change by much when it melts.