Thermodynamics filled in class notes_Part_133

Thermodynamics filled in class notes_Part_133 - 273 7.2...

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7.2. ADIABATIC, ISOCHORIC KINETICS 273 0 1. Multiply 10 6 2. Multiply 10 6 3. Multiply 10 6 4. Multiply 10 6 5. Multiply 10 6 Τ 0.2 0.4 0.6 0.8 1.0 Λ Figure 7.12: Dimensionless plot of reaction product concentration λ versus time τ for adia- batic isochoric combustion with simple reversible kinetics. 1. Multiply 10 6 2. Multiply 10 6 3. Multiply 10 6 4. Multiply 10 6 5. Multiply 10 6 Τ 2 4 6 8 10 Θ Figure 7.13: Dimensionless plot of temperature θ versus time τ for adiabatic, isochoric combustion with simple reversible kinetics. CC BY-NC-ND. 18 November 2011, J. M. Powers.
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274 CHAPTER 7. KINETICS IN SOME MORE DETAIL the species concentration plot. At early time, the temperature is cool. At a critical time, the thermal explosion time, the temperature rapidly rises. This rapid rise, coupled with the exponential sensitivity of reaction rate to temperature, accelerates the formation of product. This process continues until the reverse reaction is activated to the extent it prevents further creation of product.
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