Methanol Density Specific Weight Temperature Pressure

Overview

Engineering reference data for Methanol Density Specific Weight Temperature Pressure in thermodynamics.

Key Formulas

First Law

$\Delta U = Q - W$

Energy is conserved — heat added minus work done.

Ideal Gas Law

$PV = nRT$

Relates pressure, volume, and temperature of an ideal gas.

Heat Transfer

$Q = mc\Delta T$

Sensible heat transfer.

Carnot Efficiency

$\eta = 1 - T_C/T_H$

Maximum efficiency between two temperatures.

Variables

Symbol	Description	Unit
$U$	Internal energy	J
$Q$	Heat	J
$W$	Work	J
$P$	Pressure	Pa
$V$	Volume	m³
$T$	Temperature	K

Density and Specific Weight Data

Methanol Phase Behavior

Methanol (CH₃OH) has a boiling point of -0.8°C (30.5°F) at atmospheric pressure and a critical point at 513.38 K (240.23°C) and 82.2 bara (1191 psia). Below the boiling point, methanol exists as a liquid at atmospheric pressure.

The density of liquid methanol is nearly constant for all pressures up to 100 bara at 25°C. For most practical engineering applications, the density at equilibrium (saturation) pressure is sufficient.

Density and Specific Weight vs. Temperature (Equilibrium Pressure)

Density at Elevated Pressures

Unit Conversion Factors

Interactive Charts

References

• Original Source