Plexiglas, polymethyl methacrylate (PMMA), is often used as display windows and cases in art galleries and museums. If its flame imparts 30 kW/m2 to the surface when it burns, estimate the energy release rate of a 2 m2 square sheet (one side). You will need Tables 6.1 and 6.3, respectively.

The answer is a its density hope i

Heat capacity = mcδtheat capacity = 2.676×10^3 j ..the heat capacity given is for 7.00 g of kcn,potassium cyanide which is equal to 0. mole of mole = mass  ÷ mr of kcn is 7  ÷ 65 =0.therefore: 0. of kcn liberates 2.676×10^3 j of heat1 mole   (2.676×10^3    ÷  0.107 )  × 1 =do the calculation to obtain 25009 j = 25kj

Carbon dioxide and water