Explain how many grams of glucose need to be burned to heat a block of metal from 23 °C to 167 °C? The piece of metal has a density of 3.438 g mL-1, a specific heat of 0.476 J g-1 °C-1, also has dimensions of 2.2×2.63×1.17 cm. Mass of metal block(g)= Heat required (kj)= Mass of glucose