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BoneRemake says...

Autoignition temperature
From Wikipedia, the free encyclopedia

The autoignition temperature or kindling point of a substance is the lowest temperature at which it will spontaneously ignite in a normal atmosphere without an external source of ignition, such as a flame or spark. This temperature is required to supply the activation energy needed for combustion. The temperature at which a chemical will ignite decreases as the pressure increases or oxygen concentration increases. It is usually applied to a combustible fuel mixture.

Autoignition temperatures of liquid chemicals are typically measured using a 500 mL flask placed in a temperature controlled oven in accordance with the procedure described in ASTM E659.[1]
Contents
[hide]

1 Autoignition equation
2 Autoignition point of selected substances
3 See also
4 References
5 External links

[edit] Autoignition equation

The time t_{ig}\, it takes for a material to reach its autoignition temperature T_{ig}\, when exposed to a heat flux q''\, is given by the following equation

t_{ig} = \left ( \frac{\pi}{4} \right ) \left (k \rho c \right )\left [ \frac{T_{ig}-T_{o}}{q''} \right]^2 [2]

where k = thermal conductivity (W/(m·K)), ρ = density (kg/m³), and c = specific heat capacity (J/(kg·K)) of the material of interest. T_{o}\, is the temperature, in kelvins, the material starts at (or the temperature of the bulk material), and q''\, is the heat flux (W/m²) incident to the material.

To be consistent in units the group \left[ \frac{T_{ig}-T_{o}}{q''} \right] should be squared.

JiggaJonson says...

Well I don't want to come off like a "cynical chicken little" but it sounds as though you're implying I'm not a productive member of society.

In spite of being laid off and not receiving a salary this year; I'm substitute teaching in three different school corporations, I volunteer at a local animal shelter (ARF, Animal Rescue Fund), and I tutor non-traditional students to help them get their GEDs. I don't get compensated the same way that my friend who sells "Accidental Death and Dismemberment" insurance does but meh.

Then again, you could be just continuing your thinly veiled narcissistic nazi troll tantrum.

Either way, I'll be enjoying watching the depths of your hypocrisy continue to blossom as you tout personal freedom and live a life of complacency regarding the powers that be.

Now go pay for your marriage license whore.

In reply to this comment by blankfist:
I don't know you're the educated one, you figure it out.

In reply to this comment by JiggaJonson

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