Calculate the work of expansion accompanying the complete combustion of 10.0 g of sucrose (c12h22o11) to carbon dioxide and (a) liquid water, (b) water vapour at 20°c when the external pressure is 1.20 atm. assume ideal gas conditions and expansion.

Chemical energy is a form of a. kinetic energy only. b. both potential and kinetic energy. c. neither potential nor kinetic energy. d. potential energy only. reset

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon

Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat