What is the specific heat capacity of ammonia?
| Molecular Weight: | 17.031 |
|---|---|
| Gross Heat of Combustion @ 60° F., 1 atm. | 1483.8 BTU/ft3 |
| Specific Heat, Gas @ 25° C., 1 atm. Cp: | 0.5160 BTU/lb.° F |
| Specific Heat, Gas @ 25° C., 1 atm. Cv: | 0.4065 BTU/lb.° F |
| Specific Heat Ratio, Gas @ 25° C., 1 atm., Cp/Cv: | 1.269 |
What is the enthalpy of vaporization of ammonia?
23.35 kJ/mol
The enthalpy of vaporization of ammonia is 23.35 kJ/mol at its boiling point (-33.4 degrees Celsius).
What is the enthalpy of vaporization Δhvap for NH3?
Question: The vapor pressure of liquid NH3 is 367.3 mmHg at a temperature of 225.8 K. The enthalpy of vaporization, ΔHvap, for this liquid is 23.3 kJ/mol.
What is the critical volume of ammonia?
69.8
Chemical, Physical and Thermal Properties of Ammonia. Phase diagram included.
| Property | Value | Unit |
|---|---|---|
| Critical volume | 69.8 | m3/kg |
| Density, gas | 41.1 | kg/m3 |
| Density, liquid at -28 °F/-33.35°C, 1 atm | 40868 | kg/m3 |
| Density, liquid at 70 °F/21.1°C | 36259 | kg/m3 |
How do you find the heat capacity of ammonia?
At ambient pressure and temperature the isobaric specific heat, CP, of ammonia is 2.2 [kJ/kg K] or 0.52 [Btu/lb °F] = [cal/g K], while the isochoric specific heat, CV, is 1.6 [kJ/kg K] or 0.39 [Btu/lb °F] = [cal/g K].
Does ammonia have a high heat capacity?
The link in the question states that ammonia has a higher specific heat than water. This is true, but it is important to compare the specific heat values under identical (or very similar) conditions. The isobaric specific heat of ammonia (gas) is 2.1636 kJ/kgK at 1 atmosphere and temperature = 26.9 C.
How do you find the enthalpy of ammonia?
How do you calculate the enthalpy of ammonia?
1 Answer
- For most chemistry problems involving ΔHof , you need the following equation:
- is -905.2 kJ. Calculate ΔHof for ammonia. The standard enthalpies of formation are: NO(g) = +90.3 kJ/mol and H₂O(g) = -241.8 kJ/mol.
- ΔHof (NH₃) = x kJ/mol = -46.1 kJ/mol.
What is latent heat of vaporization of water?
For example, the latent heat of vaporization of water is 540 cal/g and the latent heat of freezing of water is 80 cal/g.
What is the molar heat of condensation of ammonia?
23.35KJ/mol
The molar heat of vaporization of ammonia is given in literature as \[23.35KJ/mol\] . Thus the molar heat of condensation for one mole of ammonia is \[ – 23.35KJ/mol\].
What is triple point of ammonia?
Thermodynamic properties
| Phase behavior | |
|---|---|
| Triple point | 195.4 K (–77.75 °C), 6.060 kPa |
| Critical point | 405.5 K (132.3 °C), 11.300 MPa |
| Std enthalpy change of fusion, ΔfusHo | +5.653 kJ/mol |
| Std entropy change of fusion, ΔfusSo | +28.93 J/(mol·K) |
What is the molar heat capacity of ammonia?
Question: 4) Ammonia has a molar heat capacity at constant volume of 29.0J/mol K.
