Homes may be heated by pumping hot water through radiators. What mass of water will provide the same amount of heat when cooled from to , as the heat provided when 95.0 g of steam is cooled from to ? Use for the specific heat capacity of water and for the specific heat capacity of steam.
Joseph Priestley prepared oxygen in by heating red mercury(II) oxide with sunlight focused through a lens. How much heat is required to decompose exactly 2 mol of red to and under standard conditions? The standard enthalpy of formation of is kJ/mol.
The enthalpy of combustion of hard coal averages kJ/g, and that of gasoline is kJ/gal. How many kilograms of hard coal provide the same amount of heat as is available from 1.0 gallon of gasoline?