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  2. Ammonia (data page) - Wikipedia

    en.wikipedia.org/wiki/Ammonia_(data_page)

    Molecular structure Point group: C 3v: ... log 10 of anydrous ammonia vapor pressure. ... Phase diagram for ammonia; IR spectrum (from NIST

  3. Chemical polarity - Wikipedia

    en.wikipedia.org/wiki/Chemical_polarity

    The ammonia molecule, NH 3, is polar as a result of its molecular geometry. The red represents partially negatively charged regions. The red represents partially negatively charged regions. Ammonia , NH 3 , is a molecule whose three N−H bonds have only a slight polarity (toward the more electronegative nitrogen atom).

  4. File:Ammonia-dimensions-from-Greenwood&Earnshaw-2D.png

    en.wikipedia.org/wiki/File:Ammonia-dimensions...

    Description: Structure and dimensions of the ammonia molecule, NH 3.. Dimensions from: Greenwood, N. N.; Earnshaw, A. (1997) Chemistry of the Elements (2 nd ed ...

  5. Ammonia - Wikipedia

    en.wikipedia.org/wiki/Ammonia

    Molecular structure of ammonia and its three-dimensional shape. It has a net dipole moment of 1.484 D. Dot and cross structure of ammonia. The ammonia molecule has a trigonal pyramidal shape, as predicted by the valence shell electron pair repulsion theory (VSEPR theory) with an experimentally determined bond angle of 106.7°. [36]

  6. Trigonal pyramidal molecular geometry - Wikipedia

    en.wikipedia.org/wiki/Trigonal_pyramidal...

    The nitrogen in ammonia has 5 valence electrons and bonds with three hydrogen atoms to complete the octet.This would result in the geometry of a regular tetrahedron with each bond angle equal to arccos(− ⁠ 1 / 3 ⁠) ≈ 109.5°.

  7. File:Potential energy diagram for ammonia synthesis.svg

    en.wikipedia.org/wiki/File:Potential_energy...

    Date/Time Thumbnail Dimensions User Comment; current: 20:22, 24 September 2013: 983 × 768 (16 KB): Imalipusram {{Information |Description={{en|Potential energy diagram for ammonia synthesis.

  8. Process flow diagram - Wikipedia

    en.wikipedia.org/wiki/Process_flow_diagram

    A process flow diagram (PFD) is a diagram commonly used in chemical and process engineering to indicate the general flow of plant processes and equipment. The PFD displays the relationship between major equipment of a plant facility and does not show minor details such as piping details and designations.

  9. Polarizability - Wikipedia

    en.wikipedia.org/wiki/Polarizability

    The polarizability of an atom or molecule is defined as the ratio of its induced dipole moment to the local electric field; in a crystalline solid, one considers the dipole moment per unit cell. [1] Note that the local electric field seen by a molecule is generally different from the macroscopic electric field that would be measured externally.