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Muntaha Nasir
CHEMISTRY
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Physical Chemistry
Which concept explains the deviation of real gases from ideal behavior?
A. Van der Waals equation.
B. Boyle's law.
C. Charles's law.
D. Avogadro's law.
Muntaha Nasir
CHEMISTRY
-
Physical Chemistry
In spectroscopy, what is the significance of the Franck-Condon principle?
A. Energy transitions.
B. Electronic states.
C. Vibrational overlaps.
D. Spin-orbit coupling.
Muntaha Nasir
CHEMISTRY
-
Physical Chemistry
What is the key concept behind the Debye-H?ckel theory in electrochemistry?
A. Activity coefficients.
B. Ionic strength.
C. Diffusion coefficients.
D. Redox potentials.
Muntaha Nasir
CHEMISTRY
-
Physical Chemistry
Which thermodynamic quantity is maximized at equilibrium for a closed system?
A. Enthalpy.
B. Entropy.
C. Gibbs free energy.
D. Helmholtz free energy.
Muntaha Nasir
CHEMISTRY
-
Physical Chemistry
What is the main purpose of the Schr?dinger equation in quantum mechanics?
A. Predicts chemical reactions.
B. Describes particle-wave duality.
C. Determines energy levels.
D. Measures electron spin.
Muntaha Nasir
CHEMISTRY
-
Physical Chemistry
Which theory explains the shapes of molecular orbitals formed from atomic orbitals?
A. Valence Bond Theory.
B. Molecular Orbital Theory.
C. Crystal Field Theory.
D. Ligand Field Theory.
Muntaha Nasir
CHEMISTRY
-
Physical Chemistry
In quantum chemistry, what does the term 'degenerate orbitals' refer to?
A. Orbitals with different shapes.
B. Orbitals with the same energy.
C. Orbitals with different spins.
D. Orbitals in different subshells.
Muntaha Nasir
CHEMISTRY
-
Physical Chemistry
What is the fundamental principle behind the Heisenberg Uncertainty Principle?
A. Exact position and momentum.
B. Exact energy levels.
C. Conjugate variables.
D. Particle-wave duality.
Muntaha Nasir
CHEMISTRY
-
Physical Chemistry
Which equation relates the Gibbs free energy to the equilibrium constant?
A. Arrhenius equation.
B. Van't Hoff equation.
C. Nernst equation.
D. Clausius-Clapeyron equation.
Muntaha Nasir
CHEMISTRY
-
Physical Chemistry
What is the significance of the partition function in statistical mechanics?
A. Measures energy distribution.
B. Describes entropy.
C. Normalizes probability.
D. Defines temperature.
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