Purchase Solution

Thermodynamics and Enthalpy of Formation

Not what you're looking for?

Ask Custom Question

I need some help with this problem, see attached file for full problem description with proper symbols:
2. a) Use only the following data to determine delta H°f for NO2 (g):
- delta H°f for NO (g) is +90.4 kJ/mol
- delta H = -56.6 kJ/mol for the reaction: NO (g) + 1/2 O2 (g) ---> NO2 (g)
b) Find delta H for the reaction: 4 CO (g) + 2 NO2 (g) ----> 4 CO2 (g) + N2 (g)
using only your answer to (a) and the fact that
delta H = -283.0 kJ/mol for the reaction: CO (g) + 1/2 O2 (g)------> CO2 (g)
c) A 10.0-liter vessel contains 5.0 atm of CO and 3.0 atm of NO2 at 25°C. How
much heat (in Joules) will be liberated if this is allowed to react to completion
according to the reaction in part (b)?
d) With Appendix C from your text, calculate H for the combustion of C4H10 (l).

Attachments
Purchase this Solution
Solution Summary

This solution gives step-by-step calculations to determine delta H for NO2, conversion of carbon monoxide to carbon dioxide and also how much heat is liberated if a reaction is allowed to react to completion. Full workings and explanations are provided.

Purchase this Solution
Free BrainMass Quizzes
Thermochemistry

The quiz helps in revising basic concepts about thermochemistry.

Functional groups in Organic Chemistry

You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.

Match Elements with their Symbols

Elements are provided: choose the matching one- or two-letter symbol for each element.

General Chemistry - Classification of Matter

This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.

Organic Chemistry Naming: Alkanes

This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.

View More Free Quizzes
Related BrainMass Solutions

  • Inorganic Thermodynamics

    26999 Inorganic Thermodynamics Calculate the standard enthalpy of formation of gaseous diborane, B2H6, using the following thermochemical information: (See attachment for full question) ----------------------------------------------------------------

  • enthalpy of reaction

    451050 Thermodynamics: Enthalpy of reaction Calcium carbide (CaC2) reacts with water to form acetylene (C2H2) and Ca(OH)2.

  • Thermodynamics: Enthalpy and Entropy

    175003 Thermodynamics: Enthalpy and Entropy 1.

  • 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.

  • Free Energy and Thermodynamics

    The standard enthalpy change for any chemical reaction is found by subtracting the sum of the heats of formation of all reactants from the sum of the heats of formation of all products.

  • General Chemistry

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

  • First law of Thermodynamics, Entropy and Enthalpy

    Change in enthalpy dH = dU+ PdV, where dU is the change in internal energy and PdV =dW is the work done due to compression of gas Here dU=36 kJ, PdV=24 kJ, dH = 36 + 24 = 60 kJ 1 For Isothermal process From (1st law of thermodynamics

  • Enthalpy, Entropy and Gibbs Free Energy

    249044 Chemical Thermodynamics : Enthalpy, Entropy and Gibbs Free Energy Consider acetic acid, CH3COOH, The active ingredient in vinegar. It is also responsible for the sour taste of wine when gets exposed to air.

  • Skeletal Reactions for Combustion

    For example, the entropy change of reaction is given by = 2*190 J mol-1 K-1 - 2*130 J mol-1 K-1 - 1*210 J mol-1 K-1 = -90 J mol-1 K-1 Plugging the standard enthalpy of formation and free energy of formation values into this equation very easily

  • 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.

View More Related Solutions