Chemistry Videos Search Your Question Skip to Videos All Videos AP Chem Subatomic Particles Chemical Reactions Aqueous Solutions Covalent Bonds Gases Thermochemistry Thermodynamics A 5.00-g sample of aluminum pellets (specific heat capacity = 0.89 J/°C · g) and a 10.00-g sample of Sodium metal reacts with water to produce hydrogen gas and sodium hydroxide according to the chemical equation shown below. A 130.2 gram sample of an unknown substance MM = 189.50 g/mol is cooled from Calculate the molar heat of fusion of this substance in kJ/mol. 300g of this unknown substance, with a molar mass of 180 g/mol, gives off 65 kJ of energy as it freezes. Calculate the work energy, w, gained or lost by the system when a gas expands from 20 L to 35 L Imagine a reaction that results in a change in both volume and temperature, as shown in the diagram below.
