The heat of vaporization of water at 100°c is 40.66 kj/mol. calculate the quantity of heat that is absorbed/released when 9.00 g of steam condenses to liquid water at 100°c. the heat of vaporization of water at 100°c is 40.66 kj/mol. calculate the quantity of heat that is absorbed/released when 9.00 g of steam condenses to liquid water at 100°c. 81.3 kj of heat are released. 20.3 kj of heat are absorbed. 81.3 kj of heat are absorbed. 20.3 kj of heat are released.