Is the given information sufficient to find the enthalpy of reaction 2 at 298 K or 398 K?
Understand the Problem
The question is asking whether the provided enthalpy data is adequate to determine the enthalpy change of a specified chemical reaction at specific temperatures (298 K and 398 K). We need to analyze the chemical equations and given enthalpy changes to assess the sufficiency of the data.
Answer
The given information is sufficient to find the enthalpy of reaction 2 at 298 K
The given information is sufficient to find the enthalpy of reaction 2 at 298 K
Answer for screen readers
The given information is sufficient to find the enthalpy of reaction 2 at 298 K
More Information
Using Hess's law, the standard enthalpies of formation provided can be combined to calculate the enthalpy of reaction at 298 K. However, to find the enthalpy at 398 K, additional information on temperature dependence or heat capacities is needed.
Tips
Ensure that Hess's Law is properly applied by correctly summing up the enthalpies of the given separate reactions.
Sources
- Worked example: Using Hess's law to calculate enthalpy of reaction - khanacademy.org
- Thermodynamics - Enthalpies of Reaction from Standard Heats of Formation - chem.libretexts.org
