7/27/2019 Lichter CHM1045 Quizzes (6A) (Spring 2012)

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Chapter 6 Quiz

Review of attempt 1

Finish review Started on Monday, 19 March 2012, 11:26 AM

Completed on Monday, 19 March 2012, 11:40 AM

Time taken 14 mins 20 secs

Grade 6 out of a maximum of 10 (60%)

Question1Marks: 1

For a process at constant pressure, which statement(s) is/are true?

Choose one answer.

a. q = 0 and = w

b. w = 0 and = q

c. =

d. q =

e. w = 0

CorrectMarks for this submission: 1/1.

Question2Marks: 1

For a process at constant volume, which statement(s) is/are true?

Choose one answer.

a. q = 0 and = w

7/27/2019 Lichter CHM1045 Quizzes (6A) (Spring 2012)

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b. w = 0 and = q

c. =

d. q =

e. w is not equal to 0

IncorrectMarks for this submission: 0/1.

Question3Marks: 1

Which answer gives the following forms of electromagnetic radiation in order ofincreasing energy: infrared, x-ray, radio waves, green light, ultraviolet?

Choose one answer.

a. infrared, x-ray, radio waves, green light, ultraviolet

b. radio waves , infrared, green light, ultraviolet, x-ray

c. x-ray, ultraviolet, infrared, green light, radio waves

d. infrared, radio waves, ultraviolet, green light, x-ray

e. green light, x-ray, radio waves, infrared, ultraviolet

IncorrectMarks for this submission: 0/1.

Question4Marks: 1

Which answer gives the following forms of electromagnetic radiation in order ofincreasing energy: A - gamma rays; B - radio waves; C- 500 nm visible light; D - avisible light photon with 2.8 x 10-19 J; or E - visible light photon with a frequency of 7.4 x1014 Hz?

Choose one answer.

a. A < B < C < D < E

b. B < C < E < A < D

c. B < D < C < E < A

7/27/2019 Lichter CHM1045 Quizzes (6A) (Spring 2012)

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d. C < D < B < A < E

e. B < E < C < D < A

IncorrectMarks for this submission: 0/1.

Question5Marks: 1

Consider the following reaction:

2 A + 3 B --> 2 C + D

Given the following heats of formation data (in kJ/mol), calculate the enthalpy, , forthe reaction.

A: f(A) = 190kJ/mol

B: f(B) = (-90)kJ/mol

C: f(C) = (-266)kJ/mol

D: f(D) = (-58)kJ/mol

Answer:-480

IncorrectMarks for this submission: 0/1.

Question6Marks: 2

How much heat is absorbed when 30.00 g of C(s) reacts in the presence of excessSO2(g) to produce CS2(l) and CO(g) according to the following chemical equation?

Choose one answer.

a. 119.8 kJ

b. 239.9 kJ

c. 599.2 kJ

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d. 1439 kJ

CorrectMarks for this submission: 2/2.

Question7Marks: 2

When 1.50 g of Ba(s) is added to 100.00 g of water in a container open to theatmosphere, the reaction shown below occurs and the temperature of the resulting

solution rises from 22.00 C to 33.10 C. If the specific heat of the solution

is calculate for the reaction, as written.

Choose one answer.

a. -431 kJ

b. -3.14 kJ

c. 3.14 kJ

d. 431 kJ

CorrectMarks for this submission: 2/2.

Question8Marks: 1

Sodium metal reacts with water to produce hydrogen gas and sodium hydroxideaccording to the chemical equation shown below. When 0.030 mol of Na is added to

100.00 g of water, the temperature of the resulting solution rises from 25.00 C to

37.90 C. If the specific heat of the solution is 4.18 J/(g C), calculateH for the reaction, as written.

Choose one answer.

a. -5.4 kJ

b. -90. kJ

c. -180 kJ

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d. -362 kJ

CorrectMarks for this submission: 1/1.

Finish review