Homework Answers
a) False. ΔG must be negative for the reaction to be spontaneous.
b) False. The copper is 0.39 and the water is 4.18.
c) False. Breaking a link requires energy to occur.
d) True.
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State whether the following statements are true or false (4 pts each) If false the statement...
2. Decide whether each of the following statements is true or false. If false, rewrite it...
2. Decide whether each of the following statements is true or false. If false, rewrite it to make it true. a. Entropy of the universe increases in all spontaneous reactions. wo False If entropy is bw enough it con be spontaneous, b. Reactions with a negative free energy change (A-Gº <0) are product-favored and occur with rapid transformation of reactants to products. True c. An exothermic reaction will always be spontaneous. I NO when AH is negative the reaction can...
13. Indicate whether the following statements are true or false. If false, correct the statement so...
13. Indicate whether the following statements are true or false. If false, correct the statement so that it is true. a. A change in enthalpy for exothermic chemical reactions is negative. b. An endothermic reaction is one in which enthalpy is absorbed by the system from the surroundings. c. Condensation of water vapor is an example of an endothermic process. d. Heat, q, and enthalpy, AH, are state functions, meaning they depend on the path taken, and q = AH....
8. Indicate whether the following statements are true or false: a. If the free energy,AG,ofareaction is...
8. Indicate whether the following statements are true or false: a. If the free energy,AG,ofareaction is negative, then the entropy,AS,must be positive b. Anendergonicreactionisone forwhichAGispositive. c. Increasing the temperature usually increases the rate of a chemical reaction because it increases rate of movement of molecules d. A reaction that releases heat (ΔH) is termed exothermic, while a reaction that releases free energy, Δ G, is termed exergonic e. The transition state of a reaction is always at a higher (unfavorable)...
Indicate whether each statement is true or false. (a) The entropy of the universe increases for...
Indicate whether each statement is true or false. (a) The entropy of the universe increases for any spontaneous process. (b) The entropy change of the system is equal and opposite that of the surroundings for any irreversible process. (c) The entropy of the system must increase in any spontaneous process. (d) The entropy change for an isothermal process depends on both the absolute temperature and the amount of heat reversibly transferred.
Determine whether each of the following statements about the thermodynamic functions are True or False as...
Determine whether each of the following statements about the thermodynamic functions are True or False as they apply to chemical reactions. True False Spontaneity is increased by positive entropy changes. True False All spontaneous chemical reactions have negative heats of reaction. True False Spontaneity is increased by negative enthalpy changes. True False Entropy and enthalpy are multiplied in the Gibbs free energy. True False The heat of reaction at constant pressure is always equal to the work done by the reaction.
8. Indicate whether each of the following statements is true or false. If a statement is...
8. Indicate whether each of the following statements is true or false. If a statement is false, explain why a) Two structural isomers may be chiral. : True b) A compound must be chiral in order to have an enantiomer. True c) A chiral compound with an asymmetric carbon atom designated always has a positive optical rotation. False (R) as d) Mirror-image molecules are always enantiomers. False chiral. False e) All compounds with asymmetric carbon atoms are f)The relative configuration...
Requirement 1. Indicate whether each of the following statements is true or false. For each false...
Requirement 1. Indicate whether each of the following statements is true or false. For each false statement, explain why it is false. Use Tor F to indicate whether each of the following statements is true or false. Change each false statement into one that is true. 1. A large cash balance is the best evidence of previous profitable operations. 2. Accounts receivable should be classified as a liability. 3. Machinery used in the business should be recorded at replacement cost....
9) Indicate whether each of the following statements is true or false. If the statement is...
9) Indicate whether each of the following statements is true or false. If the statement is false, rewrite the underlined portion to make it true. (2 points each) a) A change in primary structure always results in a change in tertiary structure. b) The largest force governing protein structure is the hydrophobic effect. c) Protein folding begins with the formation of tertiary structure. d) A heterodimer exhibits quaternary structure; a homodimer does not.
Task 2: Tools and Coding Question 1: Clearly state whether the following statements are True or...
Task 2: Tools and Coding Question 1: Clearly state whether the following statements are True or False a. In lathe operation, the process of cutting off the finished part is called Facing [TRUE/FALSE) b. A Positive rake angle is used for long slender, thin walled soft steels. [TRUE/FALSE] c. The machining Process of Producing threaded holes is called Tapping [TRUE/FALSE] d. Filler material acts as shield on weld zone to prevent oxidation [TRUE/FALSE] e. Metal inert Gas welding is one...
2. Decide whether each of the following statements is true or false. If false, rewrite it to make it true. a. Entropy of the universe increases in all spontaneous reactions. wo False If entropy is bw enough it con be spontaneous, b. Reactions with a negative free energy change (A-Gº <0) are product-favored and occur with rapid transformation of reactants to products. True c. An exothermic reaction will always be spontaneous. I NO when AH is negative the reaction can...
13. Indicate whether the following statements are true or false. If false, correct the statement so that it is true. a. A change in enthalpy for exothermic chemical reactions is negative. b. An endothermic reaction is one in which enthalpy is absorbed by the system from the surroundings. c. Condensation of water vapor is an example of an endothermic process. d. Heat, q, and enthalpy, AH, are state functions, meaning they depend on the path taken, and q = AH....
8. Indicate whether the following statements are true or false: a. If the free energy,AG,ofareaction is negative, then the entropy,AS,must be positive b. Anendergonicreactionisone forwhichAGispositive. c. Increasing the temperature usually increases the rate of a chemical reaction because it increases rate of movement of molecules d. A reaction that releases heat (ΔH) is termed exothermic, while a reaction that releases free energy, Δ G, is termed exergonic e. The transition state of a reaction is always at a higher (unfavorable)...
8. Indicate whether each of the following statements is true or false. If a statement is false, explain why a) Two structural isomers may be chiral. : True b) A compound must be chiral in order to have an enantiomer. True c) A chiral compound with an asymmetric carbon atom designated always has a positive optical rotation. False (R) as d) Mirror-image molecules are always enantiomers. False chiral. False e) All compounds with asymmetric carbon atoms are f)The relative configuration...
Requirement 1. Indicate whether each of the following statements is true or false. For each false statement, explain why it is false. Use Tor F to indicate whether each of the following statements is true or false. Change each false statement into one that is true. 1. A large cash balance is the best evidence of previous profitable operations. 2. Accounts receivable should be classified as a liability. 3. Machinery used in the business should be recorded at replacement cost....
9) Indicate whether each of the following statements is true or false. If the statement is false, rewrite the underlined portion to make it true. (2 points each) a) A change in primary structure always results in a change in tertiary structure. b) The largest force governing protein structure is the hydrophobic effect. c) Protein folding begins with the formation of tertiary structure. d) A heterodimer exhibits quaternary structure; a homodimer does not.
Task 2: Tools and Coding Question 1: Clearly state whether the following statements are True or False a. In lathe operation, the process of cutting off the finished part is called Facing [TRUE/FALSE) b. A Positive rake angle is used for long slender, thin walled soft steels. [TRUE/FALSE] c. The machining Process of Producing threaded holes is called Tapping [TRUE/FALSE] d. Filler material acts as shield on weld zone to prevent oxidation [TRUE/FALSE] e. Metal inert Gas welding is one...
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