How much heat is liberated at constant pressure if .928 g of Fe reacts with 26.2 mL of .238 M HCl? Delta H= -87.9
To determine the amount of heat liberated at constant pressure, you can use the equation:
q = m * C * ΔT
where:
q is the heat liberated or absorbed (in joules or calories),
m is the mass of the substance (in grams),
C is the specific heat capacity of the substance (in J/g°C or cal/g°C),
ΔT is the change in temperature (in °C).
In this case, it is mentioned specifically that the reaction is occurring at constant pressure, indicating that the heat evolved can be measured as enthalpy change (ΔH) of the reaction.
However, the given information does not directly provide the temperature change (ΔT) during the reaction. To determine the heat liberated, we need additional information.
If you have more information about the reaction conditions or any other applicable equations, please provide them, and I will be more than happy to assist you further in calculating the heat liberated.