Question 1

1. Use the table below to answer the questions that follow.

The value of  G° at 25 °C for the decomposition of gaseous sulfur dioxide to solid elemental sulfur and gaseous oxygen,
 
SO₂ (g)   S (s, rhombic) + O₂ (g)

is ________ kJ/mol.

Question 2

1. Use the table below to answer the questions that follow.

The value of  G° at 25 °C for the decomposition of calcium chloride into its constituent elements, 

CaCl_2 (s)    Ca (s) + Cl₂ (g)

is ________ kJ/mol.

Question 3

1. Use the table below to answer the questions that follow.

The combustion of ethane in the presence of excess oxygen yields carbon dioxide and water:

2C₂H₆ (g) + 7O₂ (g)  4CO₂ (g) + 6H₂O (l)

The value of  S° for this reaction is ________ jk/mol.

 

 

Question 4

1. The value of  G° at 261.0 °C for the formation of phosphorous trichloride from its constituent elements, 
   
   P₂ (g) + 3Cl₂ (g)   2PCl₃ (g)
   
   is ________ kJ/mol. At 25.0 °C for this reaction,  H° is -720.5 kJ/mol,  G° is  

-642.9 kj/mol and -263.7k/j

 

 

 

 

 

 

 

 

 

 

 

 

Question 5

1. Use the table below to answer the questions that follow.

The value of   G° at 25 °C for the decomposition of phosphorous trichloride into its constituent elements, 

2PCl₃ (g)    P₂ (g) + 3Cl₂ (g)

is ________ kJ/mol.

Question 6

Use the table below to answer the questions that follow.

The value of   S° for the decomposition of POCl₃ into its constituent elements, 

2POCl₃ (g)   P₂ (g) + O₂ (g) + 3Cl₂ (g)

is ________ jk/mol.

Question 7

Use the table below to answer the questions that follow.

The value of  S° for the catalytic hydrogenation of ethene to ethane,

C₂H_4 (g) + H₂(g)   C₂H_6 (g)

is ________ jk/ mol.

 

 

 

Question 8

1. Which of the following statements is true?

Question 9

Consider the reaction: 

NH₃ (g) + HCl (g)   NH₄Cl (s)

Given the following table of thermodynamic data at 298 K:

The value of K for the reaction at 25 °C is ________.

 

 

 

 

 

Question 10

1. The standard Gibbs free energy of formation of ________ is zero.

Question 11

1. S is negative for the reaction ________.

Question 12

1. Of the following, the entropy of ________ is the largest.

 

 

 

Question 13

Use the table below to answer the questions that follow.

The value of  S° for the oxidation of carbon to carbon monoxide,

2C (s, graphite) + O₂ (g)   2CO (g)

is ________ jk/mol. Carbon monoxide is produced in the combustion of carbon with limited oxygen.

 

 

 

Question 14

The equilibrium constant for the following reaction is 3.0 × 10⁸ at 25 °C. 

N₂ (g) + 3H₂ (g)   2NH₃ (g)

The value of  G° for this reaction is ________ kJ/mol.

Question 15

1. The vaporization of a substance at its boiling point is an isothermal process.

True

False

Question 16

1. For a given reaction,  S = +69.0 J/mol  K, and the reaction is spontaneous at temperatures above the crossover temperature 439k. The value  H= ?kj/mol  assuming that H and  S do not vary with temperature.

 

 

 

Question 17

1. Which one of the following is always positive when a spontaneous process occurs?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Question 18

1. Use the table below to answer the questions that follow.

The value of  S° for the oxidation of solid elemental sulfur to gaseous sulfur trioxide,

2S (s, rhombic) + 3O₂(g)   2SO₃ (g)

is ________ jk/mol.

 

Question 19

Use the table below to answer the questions that follow.

The value of  S° for the catalytic hydrogenation of acetylene to ethane,

C₂H₂ (g) + 2H₂ (g)   C₂H₆ (g)

is ________ jk/mol.

 

 

Question 20

1. Of the following, the entropy of ________ is the largest.

 

 

AccountingQueen

(3)

Status NEW Posted 20 Aug 2017 01:08 PM My Price 10.00

Hel-----------lo -----------Sir-----------/Ma-----------dam----------- T-----------han-----------k y-----------ou -----------for----------- us-----------ing----------- ou-----------r w-----------ebs-----------ite----------- an-----------d a-----------cqu-----------isi-----------tio-----------n o-----------f m-----------y p-----------ost-----------ed -----------sol-----------uti-----------on.----------- Pl-----------eas-----------e p-----------ing----------- me----------- on----------- ch-----------at -----------I a-----------m o-----------nli-----------ne -----------or -----------inb-----------ox -----------me -----------a m-----------ess-----------age----------- I -----------wil-----------l

Not Rated(0)

• Buy Answer