- Chemical Engineering Basics - Section 1
- Chemical Engineering Basics - Section 2
- Chemical Engineering Basics - Section 3
- Chemical Engineering Basics - Section 4
- Chemical Engineering Basics - Section 5
- Chemical Engineering Basics - Section 6
- Chemical Engineering Basics - Section 7
- Chemical Engineering Basics - Section 8
- Chemical Engineering Basics - Section 9
- Chemical Engineering Basics - Section 10
- Chemical Engineering Basics - Section 11
- Chemical Engineering Basics - Section 12
- Chemical Engineering Basics - Section 13
- Chemical Engineering Basics - Section 14
- Chemical Engineering Basics - Section 15
- Chemical Engineering Basics - Section 16
- Chemical Engineering Basics - Section 17
- Chemical Engineering Basics - Section 18
- Chemical Engineering Basics - Section 19
- Chemical Engineering Basics - Section 20
- Chemical Engineering Basics - Section 21
- Chemical Engineering Basics - Section 22
- Chemical Engineering Basics - Section 23
- Chemical Engineering Basics - Section 24
- Chemical Engineering Basics - Section 25
- Chemical Engineering Basics - Section 26
- Chemical Engineering Basics - Section 27
- Chemical Engineering Basics - Section 28


Chemical Engineering Basics - Engineering
Q1: At absolute zero temperature, for any reaction involving condensed phasesA Δ G° = 0 , Δ H° = 0
B Δ H° = 0 , Δ S° = 0
C Δ S° = 0 , Δ E° = 0
D Δ S° = 0 , Δ Cp° = 0
ANS:C - Δ S° = 0 , Δ E° = 0 At absolute zero temperature (T=0 K), the entropy of any system approaches zero (ΔS∘=0). This is because entropy is a measure of the disorder or randomness of a system, and at absolute zero, molecular motion ceases, resulting in minimal disorder. Therefore, the correct statement is: ΔS∘=0, Δ,0ΔCp∘=0 At absolute zero temperature, the enthalpy (ΔH∘) and the Gibbs free energy (ΔG∘) may or may not be zero depending on the specific reaction. However, in many cases, the enthalpy and the Gibbs free energy can still have non-zero values at absolute zero temperature. Therefore, the other options are not necessarily true for all reactions involving condensed phases at absolute zero temperature. |


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