AJ Water Vapor Pressure

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Solve for water vapor pressure given temperature using the Antoine equation. This calculation should be considered approximate due to the use of a fitted equation. The equation is valid from 1 to 374 Celsius. The calculator takes temperature inputs in kelvin, Celsius, Fahrenheit and Rankine. The output pressure is in millimeter and inch mercury, inches of water, pounds per square inch, Pascal, bar and atmospheres.