### Part A**Under what conditions are ΔH and ΔU for a reaction involving gases and/or liquids or solids equal?**_Check all that apply._- [ ] ΔH = ΔU if all reactants and products are liquids or solids because, to a good approximation, the volume does not change as a result of the reaction.- [x] ΔH = ΔU if the change in the number of moles of gaseous species in the reaction is zero.- [ ] ΔH = ΔU if the reaction takes place at 298.15 K.- [x] ΔH = ΔU if all reactants and products are in their standard reference states.**Note:** The selected answers indicate an understanding that ΔH equals ΔU under specific conditions related to gaseous changes and standard states.**Feedback:**- Incorrect; Try Again; 4 attempts remaining.

According to the first law of thermodynamics, the internal energy change and enthalpy change of a…

Under what conditions are AH and AU for a reaction involving gases and/or liquids or solids equal? Check all that apply. ΔΗ AU if all reactants and products are liquids or solids because, to a good approximation, the volume does not change as a result of the reaction. νΔΗ = AU if the change in the number of moles of gaseous species in the reaction is zero. ΔΗ AU if the reaction takes place at 298.15 K. V AH = AU if all reactants and products are in their standard reference states.

Under what conditions are AH and AU for a reaction involving gases and/or liquids or solids equal? Check all that apply. ΔΗ AU if all reactants and products are liquids or solids because, to a good approximation, the volume does not change as a result of the reaction. νΔΗ = AU if the change in the number of moles of gaseous species in the reaction is zero. ΔΗ AU if the reaction takes place at 298.15 K. V AH = AU if all reactants and products are in their standard reference states.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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