103年 - 103 國立嘉義大學_轉學生招生考試試題_應用化學系：普通化學#145111

1. Write down the two assumptions about the ideal gases law? (10 %)

2. Predict whether an aqueous solution of each of the following salts willbe acidic, (10 %) (NaNO3, NaF, NH4NO3, FeCl3)

(a) add 0 ml of 0.1 M KOH.

(b) add 5.0 ml of 0.1 M KOH into (a) solution.

4. The operator(hamiltonian) of kinetic energy is
one allowed wave function is 4 × e 3x. Calculate the energy of this state.(10 %)

5. The probability map of 2P_z orbital have two lobes. Since there is noprobability to find electron in the xy-plane, how can electron move fromone lobe to another lobe? (10 %)

(a) N₂²⁺

(b) O₂⁺

(a) expansion from (P₁ = 2.00 atm, V₁ = 10.0 L) to (P₂ = 2.00 atm,V₂ =30.0 L).
Calculate H (enthalpy change) and w (work) for this transition.

(b)from (P₁ = 2.00 atm, V₁ = 30.0 L) to (P₂ = 1.00 atm,V₂ = 30.0 L).
Calculate H (enthalpy change) and w (work) for this transition.

8. Calculate Ea (kcal/mol) for a reaction whose rate at 300K becomestriplet by a 20°C increase in temperature. (ln 3 = 1.1) Showing theprocess of calculation. (10 %)

9. The energy of molecular orbitals for formaldehyde (H2CO) was listed asfollowing (only valence shell was used): (10 %)
E1(-38.12520 eV), E2( -24.22435 eV), E3( -17.14038 eV), E4( -16.39972 eV), E5( -14.32883 eV), E6(-10.63006 eV),E7( 0.82666 eV), E8( 2.70776eV),
E9( 4.16055 eV ), E10(6.66917 eV)
Calculate the energy difference between HOMO and LUMO forformaldehyde.