Purchase Solution

Finding the Heat of Reaction (Enthalpy) from Heats of Formation

Not what you're looking for?

Ask Custom Question

Calculate the heat of reaction at the standard reference state for the following reactions:

2CaO(s) + 2MgO(s) + 4H2O(l) ----> 2Ca(OH)2(s) + 2Mg(OH)2(s)

NaCl(s) + 2SO2(g) + 2H2O(l) + O2(g) ----> 2Na2SO4(s) + 4HCl(g)

n-C4H10(g) ----> C2H4(g) + C2H6(g)

Purchase this Solution
Solution Summary

The solution gives a detailed explanation as to how to to calculate heat of reaction from enthalpies of formation.

Solution Preview

The heat of reaction represents the difference in the enthalpies of the reaction products and reactants at constant pressure and at a definite temperature, with every substance in a definite physical state. If heat is liberated in the reaction, the process is said to be ...

Purchase this Solution
Free BrainMass Quizzes
Architectural History

This quiz is intended to test the basics of History of Architecture- foundation for all architectural courses.

Air Pollution Control - Environmental Science

Working principle of ESP

View More Free Quizzes
Related BrainMass Solutions

  • aspirin's heat of formation

    Thank you By definiton the heat of formation is the enthalpy change associated (which is another way of saying the heat added or released) with the formation of a compound from its elements in their standard states.

  • Thermochemistry with Heat of Reactions and Standard Enthalpies

    Calculate the standard enthalpy of formation for B2H6(g) using standard enthalpies of formation and the reaction below.

  • standard enthalpy change of reaction

    The heats of formation of CO2(g) and H2O(l) are -394 kJ/mole and -285.8 kJ/mole respectively.-7.53 kJ/mole? 6) The standard enthalpy of formation of propane, C3H8, is -103.6 kJ/mole. Calculate the heat of combustion of one mole of C3H8.

  • Gas Law Problem

    Using: Enthalpy of reaction = Heats of formation of the products - Heats of formation of the reactants We should be able to calculate the heat given off when we react hydrogen and nitrgoen to produce 0.30 moles of ammonia, if we calculate the enthalpy

  • Formation Reactions

    227626 Reaction Enthalpies from Heats of Formation Calculate the enthalpy for the combustion of pentane. Please see the attached file for the fully formatted problems.

  • Heat of reaction for dissolution of NaOH

    Enthalpy of formation is different from enthalpy of dissolution.

  • Thermodynamics : Heats of Formation

    This solution explains how to calculate entropy based on Gibbs free energy and enthalpy of formation. This solution also explains how to calculate the heat of formation of a compound using the heat of reaction.

  • Heat Related Problems

    d) Heat would actually be released from both the block and foil. 2) Which is true? a) Delta Hrx is usually measured and reported in KJ/mol. b) An endothermic reaction gives a +Hrx. c) The enthalpy of formation of liquid nitrogen is 0 KJ.

  • General Chemistry

    227267 Thermodynamics : Enthalpy of Formation, Heats of Reaction and Heating Curves 1.)

View More Related Solutions