Find the enthalpy for the combustion of combustion of methanol.

Simple Calorimetry. A piece of solid aluminum at 15.0°C is immersed in 12.3 g of nitrogen gas which is initially at 51.1°C and the system is allowed to equilibrate. Given that the specific heat of solid aluminum is 0.908 J/K/g and the specific heat of nitrogen gas is 1.0 J/K/g, what is the mass of the piece of solid aluminum if the final temperature is 34.7°C?

What is the standard enthalpy of formation for a compound? For a pure element in its standard state?

Calculate the enthalpy of solution (AH for the dissolution) per mole of CaCl, (refer to Exercise 5.25). Exercise 5.25: Dissolving 3.0 g of CaCl2(s) in 150.0 g of water in a calorimeter (Figure 5.12) at 22.4 °C causes the temperature to rise to 25.8 °C. What is the approximate amount of heat involved in the dissolution, assuming the specific heat of the resulting solution is 4.18 J/g °C? Is the reaction exothermic or endothermic? heat: [ Select] exothermic vs endothermic: [Select] enthalpy: [ Select ] a 99+