Physical Chemistry

Download Q&A
Q. What is the relationship between Kp and Kc for the reaction aA(g) + bB(g) ⇌ cC(g) + dD(g)?
  • A. Kp = Kc(RT)^(d+c-b-a)
  • B. Kp = Kc(RT)^(a+b-c-d)
  • C. Kp = Kc/(RT)^(d+c-b-a)
  • D. Kp = Kc/(RT)^(a+b-c-d)
Q. What is the relationship between pKa and Ka for a weak acid?
  • A. pKa = -log(Ka)
  • B. pKa = log(Ka)
  • C. pKa = Ka
  • D. pKa = 1/Ka
Q. What is the relationship between pKa and Ka for an acid?
  • A. pKa = -log(Ka)
  • B. pKa = log(Ka)
  • C. pKa = Ka
  • D. pKa = 1/Ka
Q. What is the relationship between pKa and Ka?
  • A. pKa = -log(Ka)
  • B. pKa = log(Ka)
  • C. pKa = Ka
  • D. pKa = 1/Ka
Q. What is the relationship between pressure and temperature for a fixed amount of gas at constant volume?
  • A. Directly proportional
  • B. Inversely proportional
  • C. No relationship
  • D. Exponential
Q. What is the relationship between pressure and temperature in Gay-Lussac's Law?
  • A. Directly proportional
  • B. Inversely proportional
  • C. No relationship
  • D. Exponential relationship
Q. What is the relationship between temperature and kinetic energy of gas molecules?
  • A. Directly proportional
  • B. Inversely proportional
  • C. No relationship
  • D. Exponential relationship
Q. What is the relationship between temperature and the kinetic energy of gas molecules?
  • A. Directly proportional
  • B. Inversely proportional
  • C. No relationship
  • D. Exponential
Q. What is the relationship between temperature and the rate of a chemical reaction?
  • A. Rate decreases with temperature
  • B. Rate increases with temperature
  • C. Rate is independent of temperature
  • D. Rate is constant at all temperatures
Q. What is the relationship between the density of a gas and its molar mass at constant temperature and pressure?
  • A. Density is directly proportional to molar mass
  • B. Density is inversely proportional to molar mass
  • C. Density is independent of molar mass
  • D. Density is equal to molar mass
Q. What is the relationship between the equilibrium constant (K) and the Gibbs free energy change (ΔG) for a reaction?
  • A. ΔG = -RT ln(K)
  • B. ΔG = RT ln(K)
  • C. ΔG = KRT
  • D. ΔG = K/R
Q. What is the relationship between the equilibrium constant (K) and the reaction quotient (Q)?
  • A. K = Q at equilibrium
  • B. K > Q at equilibrium
  • C. K < Q at equilibrium
  • D. K is independent of Q
Q. What is the relationship between the equilibrium constants Kp and Kc for a gaseous reaction?
  • A. Kp = Kc
  • B. Kp = Kc(RT)^(Δn)
  • C. Kp = Kc/RT
  • D. Kp = Kc(RT)^(Δn) where Δn is the change in moles of gas
Q. What is the relationship between the Gibbs free energy change (ΔG) and the equilibrium constant (K)?
  • A. ΔG = -RT ln(K)
  • B. ΔG = RT ln(K)
  • C. ΔG = K - RT
  • D. ΔG = 0 at equilibrium
Q. What is the relationship between the Gibbs free energy change (ΔG) and the equilibrium constant (K) at standard conditions?
  • A. ΔG = RT ln K
  • B. ΔG = -RT ln K
  • C. ΔG = KRT
  • D. ΔG = K/R
Q. What is the relationship between the molality of a solution and its boiling point elevation?
  • A. Directly proportional
  • B. Inversely proportional
  • C. No relationship
  • D. Exponential relationship
Q. What is the relationship between the principal quantum number (n) and the energy of an electron in a hydrogen atom?
  • A. Energy increases with increasing n
  • B. Energy decreases with increasing n
  • C. Energy is independent of n
  • D. Energy is maximum at n=1
Q. What is the relationship between ΔG and equilibrium constant K?
  • A. ΔG = -RT ln K
  • B. ΔG = RT ln K
  • C. ΔG = KRT
  • D. ΔG = K/R
Q. What is the relationship between ΔG and the equilibrium constant (K)?
  • A. ΔG = -RT ln(K)
  • B. ΔG = RT ln(K)
  • C. ΔG = KRT
  • D. ΔG = K - RT
Q. What is the relationship between ΔG, ΔH, and ΔS at constant temperature?
  • A. ΔG = ΔH + TΔS
  • B. ΔG = ΔH - TΔS
  • C. ΔG = TΔS - ΔH
  • D. ΔG = ΔH/ΔS
Q. What is the relationship between ΔH and ΔG at equilibrium?
  • A. ΔG = 0
  • B. ΔH = 0
  • C. ΔG = ΔH
  • D. ΔG = ΔH + TΔS
Q. What is the relationship between ΔH and ΔU for a reaction at constant pressure?
  • A. ΔH = ΔU + PΔV
  • B. ΔH = ΔU - PΔV
  • C. ΔH = ΔU
  • D. ΔH = PΔV
Q. What is the role of a catalyst in a redox reaction?
  • A. Increase oxidation
  • B. Increase reduction
  • C. Speed up the reaction
  • D. Change the products
Q. What is the role of a salt bridge in a galvanic cell?
  • A. To provide a pathway for electrons
  • B. To maintain charge balance
  • C. To increase voltage
  • D. To decrease resistance
Q. What is the role of activated charcoal in adsorption processes?
  • A. Catalyst
  • B. Adsorbent
  • C. Solvent
  • D. Reagent
Q. What is the role of the cathode in an electrochemical cell?
  • A. Oxidation occurs
  • B. Reduction occurs
  • C. Electrons are lost
  • D. Ions are produced
Q. What is the shape of a molecule with the formula AX3E?
  • A. Trigonal planar
  • B. Tetrahedral
  • C. Trigonal pyramidal
  • D. Bent
Q. What is the shape of the ammonia (NH3) molecule?
  • A. Linear
  • B. Trigonal planar
  • C. Tetrahedral
  • D. Trigonal pyramidal
Q. What is the shape of the d orbitals?
  • A. Spherical
  • B. Dumbbell
  • C. Double dumbbell
  • D. Linear
Q. What is the shape of the molecular orbital in the case of a π bond?
  • A. Spherical
  • B. Dumbbell
  • C. Linear
  • D. Planar
Showing 871 to 900 of 1494 (50 Pages)
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely