Methane

Overview

Engineering reference data for Methane in gases and compressed air.

Key Formulas

Ideal Gas Law

$PV = nRT$

Pressure × Volume = moles × gas constant × temperature.

Boyle's Law

$P_1 V_1 = P_2 V_2$

At constant temperature.

Charles's Law

$\frac{V_1}{T_1} = \frac{V_2}{T_2}$

At constant pressure.

Variables

Symbol	Description	Unit
$P$	Pressure	Pa
$V$	Volume	m³
$T$	Temperature	K
$R$	Gas constant	8.314 J/(mol·K)

Methane Gas Specific Heat Data

The specific heat at constant pressure ($c_p$) for methane gas ($\text{CH}_4$) is temperature-dependent. The following table provides measured values for temperatures ranging from 200 K to 1100 K.

Note: The specific heat values vary significantly with temperature. For engineering calculations involving heating or cooling of methane, using temperature-corrected values from this table improves accuracy over using a single constant value.

Interactive Charts

References

• Original Source