What is the atmospheric pressure of methane?
What is the atmospheric pressure of methane?
one atmosphere
Methane has a boiling point of −161.5 °C at a pressure of one atmosphere.
What is CP CV for methane?
Isobaric specific heat (Cp) is used for substances in a constant pressure (ΔP = 0) system….Specific heat of Methane Gas – CH4 – at temperatures ranging 200 – 1100 K.
| Methane Gas – CH4 | |
|---|---|
| Temperature – T – (K) | Specific Heat – cp – (kJ/(kg K)) |
| 300 | 2.226 |
| 325 | 2.293 |
| 350 | 2.365 |
How do you read a pressure enthalpy graph?
On the P-H diagram, pressure is indicated on the y-axis and enthalpy is indicated on the x-axis. Typically enthalpy is in units of Btu/lb and pressure is in units of pounds per square inch (psi). The upside down U figure shown on the diagram designates the points at which the refrigerant changes phase.
Why are the temperature lines horizontal inside the saturated curve?
The temperature lines run horizontally inside the saturated region because the temperature of a saturated mixture stays the same as it changes state. The constant-quality lines start at the bottom and extend upward toward the critical point located in top center of the saturation curve.
Why is methane a worse greenhouse gas?
Methane (CH4) is the second most important greenhouse gas. CH4 is more potent than CO2 because the radiative forcing produced per molecule is greater. In addition, the infrared window is less saturated in the range of wavelengths of radiation absorbed by CH4, so more molecules may fill in the region.
What is enthalpy of methane?
12.1 J/(mol·K) Std enthalpy change. of vaporization, ΔvapHo. 8.17 kJ/mol.
What is the enthalpy of formation of methane?
The standard molar enthalpy of formation of methane is negative 74.8 kilojoules per mole.