Purchase Solution

Thermo Dynamics

Not what you're looking for?

Ask Custom Question

Given the values of ΔH ∘ rxn , ΔS ∘ rxn , and T below, determine ΔS univ .

Part A: ΔH ∘ rxn = 80kJ , ΔS rxn = 143J/K , T= 299K Express your answer using two significant figures.

Part B ΔH ∘ rxn = 80kJ , ΔS rxn = 143J/K , T= 754K Express your answer using two significant figures.

Part C : ΔH ∘ rxn = 80kJ , ΔS rxn =− 143J/K , T= 299K Express your answer using two significant figures.

Part D : ΔH ∘ rxn =− 80kJ , ΔS rxn = 143J/K , T= 403K Express your answer using two significant figures.

Part E: Predict whether or not the reaction in part A will be spontaneous.

Part F: Predict whether or not the reaction in part B will be spontaneous.

Part G: Predict whether or not the reaction in part C will be spontaneous.

Part H:Predict whether or not the reaction in part D will be spontaneous.

Purchase this Solution
Solution Summary

The solution discuses thermo dynamics with the given values.

Solution Preview

ΔS univ = ΔS ∘ rxn - (ΔH ∘ rxn/T)

Part A: ΔS univ = 143 - (80000/299) = -124.56J or -0.12kJ

Part B: ΔS univ = 143 - (80000/754) = +36.90J or +0.04kJ

Part C: ΔS univ = -143 ...

Purchase this Solution
Free BrainMass Quizzes
Thermochemistry

The quiz helps in revising basic concepts about thermochemistry.

Periodic table

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.

View More Free Quizzes
Related BrainMass Solutions

  • Organic Reactions - Cyclopentadiene

    Thermo energy causes dimer to dissociate into monomers. Therefore, more monomers exist at higher temperature than the dimer. At lower temperature, the monomer reacts with itself to form dimer.

  • Nanotechnology Technological Advances

    Nano Thermo-Physical Engineering The behavior of any physical system can be related to atomic-scale description.

  • PV Diagram Isobar

    Check out: http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/heaeng.html#c1 http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/pvdiagcon.html#c1 Word and PDFs show how to draw an isobar and answer questions about adiabatic expansion.

  • Energy of the Molecules of an Ideal Gas

    Check out an *excellent* discussion at: http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/temper2.html#c1 http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/temper.html#c1 http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/tempercon.html#c1 Also

  • The Laws of Thermodynamics in the Rainforest

    This state is called entropy- a special form of energy which is in fact heat (This is why it is referred to as 'Thermo'-Dynamics.' As well, entropy is always increased in a closed system.

  • Production Cycle- Auditing and Assurance Services

    Receiving Report Number Date Received Total Cost 1179 12/28 12,433.61 1180 12/28 8,923.34 1181 12/29 15,448.22 1182 12/31 14,109.33 1184 1/2 17,852.56 Prepare a correcting journal entry assuming that Thermo-Tempur uses A) A periodic inventory

  • Sports Srinks, Electrolytes and Hydration.

    Explain why sports drinks might or might not aid in thermo regulation.

  • Turbine Thermo Steam Velocity

    412336 Turbine Thermo Steam Velocity Steam enters a turbine with a velocity of 20 ms-1, a pressure of 3 bar, internal energy of 3500 kJ kg-1 and density of 1.7 kg ms-3.

  • Protein Folding

    Finally, imagine that you're clever enough to engineer the protein to be more thermo-stable without affecting the DNA binding. In other words, the protein exists primarily in the folded form at equilibrium.

View More Related Solutions