UPCAT Chemistry — Molecular Theory — VSEPR, IMFA & KMTConcept Map
For visual learners attacking the UPCAT 2026, a Molecular Theory — VSEPR, IMFA & KMT concept map is usually worth more than ten pages of linear notes. UP builds many Molecular Theory — VSEPR, IMFA & KMT items around the same handful of relationships — spot them on a map and you recognise them at a glance in the Chemistry paper.
Exam context
The University of the Philippines College Admission Test is conducted by University of the Philippines and is scheduled for Mid-2026 (announced by UP Admissions). The Chemistry subtest is marked as "Core" in the official pattern, and Molecular Theory — VSEPR, IMFA & KMT appears in position 5th of 7 in the UPCAT Chemistry review rotation. Passing mark: UPG ≤ 2.2 typical. Recent UPCAT 2026 papers have drawn roughly 20 questions from this subject.
Molecular Theory — VSEPR, IMFA & KMT - Concept map
Central Concept
Molecular Theory explains the behavior and properties of matter at the molecular level through three key frameworks: VSEPR Theory for molecular geometry, Intermolecular Forces (IMFA) for molecular interactions, and Kinetic Molecular Theory (KMT) for gas behavior.
Related Concepts
Concept
VSEPR Theory
Sub Concepts
- Electron pair geometry
- Molecular geometry
- Bond angles
- Linear geometry
- Trigonal planar
- Tetrahedral
- Trigonal bipyramidal
- Octahedral
- Lone pair effects
- Bonding vs non-bonding pairs
Relationship To Central
Predicts three-dimensional molecular shapes based on electron pair repulsion
Concept
Intermolecular Forces (IMFA)
Sub Concepts
- Van der Waals forces
- London dispersion forces
- Dipole-dipole forces
- Hydrogen bonding
- Ion-dipole forces
- Boiling point trends
- Melting point trends
- Solubility patterns
- Molecular polarity
- Electronegativity differences
Relationship To Central
Explains attractions between molecules that determine physical properties
Concept
Kinetic Molecular Theory (KMT)
Sub Concepts
- Negligible particle volume
- No intermolecular attractions
- Constant random motion
- Elastic collisions
- Temperature-kinetic energy relationship
- Absolute zero
- Gas pressure
- Gas laws applications
- Ideal gas assumptions
- Real gas deviations
Relationship To Central
Describes gas behavior through molecular motion and energy concepts
Concept Connections
To
Intermolecular Forces
From
VSEPR Theory
Strength
strong
Relationship
Molecular geometry determines polarity, which affects intermolecular force strength
To
Kinetic Molecular Theory
From
Intermolecular Forces
Strength
moderate
Relationship
IMFA explains deviations from ideal gas behavior at high pressure and low temperature
To
Physical Properties
From
VSEPR Theory
Strength
strong
Relationship
Molecular shape influences boiling points, melting points, and solubility
To
Gas Laws
From
Kinetic Molecular Theory
Strength
strong
Relationship
KMT provides theoretical foundation for gas law relationships
To
Water Properties
From
Hydrogen Bonding
Strength
strong
Relationship
Explains water's unique properties like high boiling point and surface tension
To
Molecular Size
From
London Dispersion Forces
Strength
moderate
Relationship
Larger molecules have stronger London forces due to more electrons
To
Dipole Formation
From
Electronegativity
Strength
strong
Relationship
Electronegativity differences create molecular dipoles affecting IMFA
To
Kinetic Energy
From
Temperature
Strength
strong
Relationship
Directly proportional relationship as stated in KMT postulate 5
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