The enthalpy change when calcium chloride dissolves in water is kJ/mol. The heat capacity of the solution is approximately equal to that of water . If 90 g of dissolves in 5.0 L of water at , what is the temperature of the resulting solution?
The melting enthalpy of ice is 6.01 kJ/mol. At , combustion of 10.0 g of butane releases sufficient heat to melt 1.20 kg of ice and increase the temperature of the resulting water ( = 4.184 J/g⋅K) to . What is the enthalpy of combustion of butane?
Aqueous iron(II) chloride and hydrogen peroxide react in excess dilute hydrochloric acid according to the following equation: The enthalpy change for this reaction is kJ/mol. At , solutions containing 1.901 g of and 0.260 g of in 1 M aqueous are mixed in an insulated container. The final solution has a volume of 100 cm3, a density of 1.000 g/cm3, and a specific heat of 4.184 J/g⋅K. Calculate, to 1 decimal place, the temperature of the solution at the end of the reaction.