Reaction Enthalpies – Organic Chemistry Quiz
The key terms in this Organic Chemistry course include Reaction Enthalpies.
Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction:
2 S(s) + 3 O2(g) → 2 SO3(g) ΔH°rxn = ?
Given:
SO2(g) → S(s) + O2(g) ΔH°rxn = +296.8 kJ
2 SO2(g) + O2(g) → 2 SO3(g) ΔH°rxn = -197.8 kJ
-692.4 kJ
-293.0 kJ
1583 kJ
-791.4 kJ – Correct
-494.6 kJ
The vertical height of a wave is called
median.
wavelength.
area.
frequency.
amplitude. – Correct
The volume of a gas is proportional to the temperature of a gas is known as
Charles’s Law. – Correct
Dalton’s Law.
Avogadro’s Law.
Boyle’s Law.
Ideal Gas Law.
Reaction Enthalpies – Organic Chemistry Quiz
Give the numbers for ml for a p orbital.
-2, -1, 0
0, +1
-1, 0, +1 – Correct
+1, +2
-2, -1, 0, +1, +2
Which of the following is not an electrophile?
+NO2
Fe+3
CH2CH2 – Correct
H+
BF3
How many molecules of sucrose (C12H22O11, molar mass = 342.30 g/mol) are contained in 14.3 mL of 0.140 M sucrose solution?
8.29 × 1022 molecules C12H22O11
6.15 × 1022 molecules C12H22O11
1.63 × 1023 molecules C12H22O11
1.21 × 1021 molecules C12H22O11 – Correct
5.90 × 1024 molecules C12H22O11
Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction:
2 S(s) + 3 O2(g) → 2 SO3(g) ΔH°rxn = ?
Given:
SO2(g) → S(s) + O2(g) ΔH°rxn = +296.8 kJ
2 SO2(g) + O2(g) → 2 SO3(g) ΔH°rxn = -197.8 kJ
-692.4 kJ
-293.0 kJ
1583 kJ
-791.4 kJ – Correct
-494.6 kJ
The vertical height of a wave is called
median.
wavelength.
area.
frequency.
amplitude. – Correct
The volume of a gas is proportional to the temperature of a gas is known as
Charles’s Law. – Correct
Dalton’s Law.
Avogadro’s Law.
Boyle’s Law.
Ideal Gas Law.
How many photons are contained in a flash of green light (525 nm) that contains 189 kJ of energy?
2.01 × 1024 photons
1.25 × 1031 photons
4.99 × 1023 photons – Correct
7.99 × 1030 photons
5.67 × 1023 photons