AP Chem Semester 01 Exam Review Units 04-06

+2540kJ/mol

−2540kJ/mol

+820kJ/mol

−820kJ/mol

-302.4 kJ/mol

-604.8 kJ/mol

-907.2 kJ/mol

-151.2 kJ/mol

+ΔH, −ΔS, ΔG=0

−H, +S, ΔG=0

+ΔH, +ΔS, −ΔG

−ΔH, −ΔS, −ΔG

The reaction is unfavorable due to both enthalpy and entropy changes.

The reaction is favorable and driven by an entropy change only.

The reaction is favorable and driven by an enthalpy change only.

The reaction is favorable and driven by both enthalpy and entropy changes.

−424.13 J/mol⋅K

−212.07 J/mol⋅K

−848.26 J/mol⋅K

−1696.52 J/mol⋅K

2 Ag(s) + Br2(ℓ) → 2 AgBr(s)

H₂(g) + I₂(s) → 2 HI(g) 

2 NO₂(g) → N₂O₄(g)

He(g, 2 atm) → He(g, 10 atm)

-ΔG

-ΔH

-ΔS

-ΔG

+ΔH

+ΔS

+ΔG

-ΔH

-ΔS

+ΔG

+ΔH

+ΔS

an ENDOthermic reaction ONLY

an EXOthermic reaction ONLY

BOTH ENDOthermic and EXOthermic reactions

NEITHER ENDOthermic nor EXOthermic reactions

increasing the activation energy

increasing the temperature of the reaction

increasing the particle size by using a large block of wood instead of fine particles of sawdust

increasing the concentration of oxygen reacting with the organic material

First Order.

Concentration is halved after 3.00 min and again after another 3.00min. Thus the half-life of the reaction is constant, so the reaction is first order.

Zero Order.

Concentration is halved after 3.00 min and again after another 3.00min. Thus the half-life of the reaction is constant, so the reaction is zero order.

Second Order.

Concentration is halved after 3.00 min and again after another 3.00min. Thus the half-life of the reaction is constant, so the reaction is second order.

First Order.

ln(Concentration) is halved after 3.00 min and again after another 3.00min. Thus the half-life of the reaction is constant, so the reaction is first order.

Collide with enough energy that meets or exceeds the minimum activation energy.

Collide with the correct orientation.

Collide in a solution with at least the standard concentration.

Collide in the gas or aqueous phase, but not the solid or liquid phase.