10.0 grams of octane are burned in a bomb calorimeter containing 2.00 × 102 g H2O.If the water temperature increases from 25.00oC to 37.00oC, how much energy was released by the system?

A) 7.40 kcal B) 3.00 × 103 kcal C) 2.52 kcal D) 1.65 kcal E) 2.40 kcal A) 7.40 kcal B) 3.00 × 103 kcal C) 2.52 kcal D) 1.65 kcal E) 2.40 kcal

Exam 7: Energy, Rate and Equilibrium

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A candy sample is completely combusted in a bomb calorimeter.The calorimeter contains 982 g of water, and the measured temperature increase is 2.62°C.What is the fuel value of the candy sample in nutritional Calories? [SHw = 1.00 cal/g•°C]

(Multiple Choice)

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Question 21

What is the name and symbol of the thermodynamic quantity that represents the heat absorbed or liberated in a chemical reaction at constant pressure?

(Multiple Choice)

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Question 22

A reaction will be spontaneous at all temperatures under which conditions?

(Multiple Choice)

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Question 23

What thermodynamic quantity is the ultimate predictor of reaction spontaneity?

(Multiple Choice)

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Question 24

A collision between reactant molecules that produces one or more product molecules is called an effective collision.

(True/False)

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Question 25

Which of the following will NOT increase the rate of a reaction?

(Multiple Choice)

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Question 26

Removal of a gaseous product from an equilibrium reaction mixture shifts the equilibrium toward formation of more products.

(True/False)

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Question 27

In the potential energy diagram for a chemical reaction, what is the name used for the unstable species corresponding to the top of the energy barrier separating reactants from products?

(Multiple Choice)

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Question 28

Thermodynamics is best described as which of the following?

(Multiple Choice)

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Question 29

Which of the following is a process with a negative ∆S?

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Question 30

A reaction that leads to a decrease in the free energy of the system is always spontaneous.

(True/False)

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Question 31

Which of the following represents an exothermic reaction?

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Question 32

10.0 grams of octane are burned in a bomb calorimeter containing 2.00 × 10² g H₂O.If the water temperature increases from 25.00^oC to 37.00^oC, how much energy was released by the system?

(Multiple Choice)

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Question 33

Which of the following is the equilibrium constant expression for the reaction? 2NO(g) + O₂(g) → 2NO₂(g)

(Multiple Choice)

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Question 34

Under normal conditions, which of the following would have the highest entropy?

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Question 35

LeChatelier's principle states that if a stress is placed on a system at equilibrium, the system will respond by altering the equilibrium composition in such a way as to relieve the stress.

(True/False)

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Question 36

Which of the following is FALSE about the energy diagram shown?

(Multiple Choice)

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Question 37

Which of the following is a TRUE statement concerning the specific heat of a substance?

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Question 38

A granola bar contains 185 nutritional Calories.How many kilojoules is this? [1 cal = 4.18 J]

(Multiple Choice)

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Question 39

Ammonia is synthesized industrially by the reaction of nitrogen and hydrogen in the presence of an iron catalyst according to the reaction equation below.What effect would removing the iron catalyst have on this reaction?

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Question 40

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Exam 7: Energy, Rate and Equilibrium

A candy sample is completely combusted in a bomb calorimeter.The calorimeter contains 982 g of water, and the measured temperature increase is 2.62°C.What is the fuel value of the candy sample in nutritional Calories? [SHw = 1.00 cal/g•°C]

What is the name and symbol of the thermodynamic quantity that represents the heat absorbed or liberated in a chemical reaction at constant pressure?

A reaction will be spontaneous at all temperatures under which conditions?

What thermodynamic quantity is the ultimate predictor of reaction spontaneity?

A collision between reactant molecules that produces one or more product molecules is called an effective collision.

Which of the following will NOT increase the rate of a reaction?

Removal of a gaseous product from an equilibrium reaction mixture shifts the equilibrium toward formation of more products.

In the potential energy diagram for a chemical reaction, what is the name used for the unstable species corresponding to the top of the energy barrier separating reactants from products?

Thermodynamics is best described as which of the following?

Which of the following is a process with a negative ∆S?

A reaction that leads to a decrease in the free energy of the system is always spontaneous.

Which of the following represents an exothermic reaction?

10.0 grams of octane are burned in a bomb calorimeter containing 2.00 × 102 g H2O.If the water temperature increases from 25.00oC to 37.00oC, how much energy was released by the system?

Which of the following is the equilibrium constant expression for the reaction? 2NO(g) + O2(g) → 2NO2(g)

Under normal conditions, which of the following would have the highest entropy?

LeChatelier's principle states that if a stress is placed on a system at equilibrium, the system will respond by altering the equilibrium composition in such a way as to relieve the stress.

Which of the following is FALSE about the energy diagram shown?

Which of the following is a TRUE statement concerning the specific heat of a substance?

A granola bar contains 185 nutritional Calories.How many kilojoules is this? [1 cal = 4.18 J]

Ammonia is synthesized industrially by the reaction of nitrogen and hydrogen in the presence of an iron catalyst according to the reaction equation below.What effect would removing the iron catalyst have on this reaction?

Chemistry:methods and Measurement

The Structure of the Atom and the Periodic Table

Structure and Properties of Ionic and Covalent Compounds

Calculations, Chemical Changes, and the Chemical Equation

States of Matter- Gases, Liquids, and Solids

Solutions

Acids and Bases

The Nucleus, Radioactivity, and Nuclear Medicine

An Introduction to Organic Chemistry- the Saturated Hydrocarbons

The Unsaturated Hydrocarbons- Alkenes, Alkynes, and Aromatics

Alcohols, Phenols, Thiols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Carboxylic Acid Derivatives

Amines and Amides

Carbohydrates

Lipids and Their Functions in Biochemical Systems

Protein Structure and Function

Enzymes

Introduction to Molecular Genetics

Carbohydrate Metabolism

Aerobic Respiration and Energy Production

Fatty Acid Metabolism

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10.0 grams of octane are burned in a bomb calorimeter containing 2.00 × 10² g H₂O.If the water temperature increases from 25.00^oC to 37.00^oC, how much energy was released by the system?

Which of the following is the equilibrium constant expression for the reaction? 2NO(g) + O₂(g) → 2NO₂(g)