How do temperature, pressure, and humidity affect MIE?

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Minimum Ignition Energy (MIE) is affected by temperature, pressure, and humidity. Higher temperatures generally decrease MIE by increasing molecular energy, making ignition easier, while lower temperatures increase MIE due to reduced energy. Higher pressures also lower MIE by compressing the fuel-air mixture, enhancing ignition likelihood, whereas lower pressures raise MIE by reducing molecular density. Humidity influences MIE by diluting the fuel-air mixture; higher humidity can increase minimum ignition energy, while lower humidity typically decreases it by allowing higher concentrations of combustible materials. Understanding these factors is essential for ensuring safety in industries dealing with flammable substances.