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Which of the following statements is incorrect? Which of the following statements is incorrect? Select one: O a. En...
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....
1) One of these statements is incorrect. Which one? Group of answer choices Energy is the...
1) One of these statements is incorrect. Which one? Group of answer choices Energy is the capacity to do work or transfer heat. Exothermic processes transfer heat from the surroundings into the system. Endothermic processes have a positive ΔH value. Energy is neither created nor destroyed in chemical reactions. 2) Choose the compound from the set that can be classified as a salt. Group of answer choices sodium hydroxide (NaOH) acetic acid (CH3CO2H) glucose (C6H12O6) magnesium bromide (MgBr2) 3) Which...
Someone please help solving this asap thanks! 1. Calculate AE and determine whether the process is...
Someone please help solving this asap thanks!
1. Calculate AE and determine whether the process is exothermic or endothermic for the following cases: L. When a chemical reaction produces 90.7 kJ of heat but does no work on its surroundings. il. When combustion of a gas releases 2100U of heat to its surroundings. ii. When 33.05 kd of heat is transferred to the system and 22.0 kJ of work on the surroundings. Iv. When 121 kJ of work is performed...
1. A gas absorbs 0.0 J of heat and then performs 30.8 J of work. The change in internal energy of the gas is a. 61....
1. A gas absorbs 0.0 J of heat and then performs 30.8 J of work. The change in internal energy of the gas is a. 61.6 J. b. 30.8 J. c. -61.6 J. d.-30.8 J. e. none of these 2. Which of the following statements correctly describes the signs of q and w for the following exothermic process at P= 1 atm and T = 370 K? H2O(g) → H2O(1) a. q and w are negative. b. is positive, wis...
Which statements are true? Δ?ΔH for an exothermic reaction is positive. When energy is transferred as...
Which statements are true? Δ?ΔH for an exothermic reaction is positive. When energy is transferred as heat from the surroundings to the system, Δ?ΔH is negative. When energy is transferred as heat from the system to the surroundings, Δ?ΔH is negative. The evaporation of water is an exothermic process. Δ?ΔH for an endothermic reaction is positive. A combustion reaction is exothermic.
The objectives for this discussion forum will introduce you to the fundamental concepts of energy and...
The objectives for this discussion forum will introduce you to the fundamental concepts of energy and how they are used in thermochemistry. Thermochemistry is the study of the relationships between heat energy and chemical reactions. You will choose from one of the following statements and then provide your assessment. Consider an exothermic process taking place in an Erlenmeyer flask at room temperature. Choose one of the following statements, determine if it is true or false, then provide an explanation for...
QUESTION 23 Which of the following statements is incorrect? a. A spontaneous process occurs under specified...
QUESTION 23 Which of the following statements is incorrect? a. A spontaneous process occurs under specified conditions without outside intervention. Ob. AGsys --TASuniv c. A nonspontaneous process occurs only if the surroundings continuously supply energy to the system. d. The relationship between AGⓇ and K at 25°C is: if K< 1, AG° <0. e. A spontaneous change may be exothermic or endothermic.
1. If q 60 kJ and w = 96 kJ for a certain process, that process...
1. If q 60 kJ and w = 96 kJ for a certain process, that process (3) a. requires a catalyst. b. is endothermic. c. occurs slowly. d. is exothermic. e. cannot occur. 2. What is the change in internal energy of the system (AU) if 71 kJ of heat energy is absorbed by the system and 12 kJ of work is done on the system for a certain process? (4) a. 83 kJ b. 59 kJ c. 71 kJ...
Which of the following statements is false? Select one: a. State functions do not depend on...
Which of the following statements is false? Select one: a. State functions do not depend on the path taken to arrive at a particular state b. Energy can be neither created nor destroyed c. The enthalpy change of a reaction can be determined using calorimetry d. Heat and work are state functions e. none of the above
Which of the following statements is incorrect? Select one: O a. When the recipient of a...
Which of the following statements is incorrect? Select one: O a. When the recipient of a gift receives the gift she will pay gift taxes upon receipt of the O b. Deductible property taxes include taxes on personal property O c. The heir does not pay income tax on property she receives from the estate atardecedentes d. If a taxpayer buys a dishwasher in Oregon which charges no sales tax, she will owe use toxin California.
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....
Someone please help solving this asap thanks!
1. Calculate AE and determine whether the process is exothermic or endothermic for the following cases: L. When a chemical reaction produces 90.7 kJ of heat but does no work on its surroundings. il. When combustion of a gas releases 2100U of heat to its surroundings. ii. When 33.05 kd of heat is transferred to the system and 22.0 kJ of work on the surroundings. Iv. When 121 kJ of work is performed...
1. A gas absorbs 0.0 J of heat and then performs 30.8 J of work. The change in internal energy of the gas is a. 61.6 J. b. 30.8 J. c. -61.6 J. d.-30.8 J. e. none of these 2. Which of the following statements correctly describes the signs of q and w for the following exothermic process at P= 1 atm and T = 370 K? H2O(g) → H2O(1) a. q and w are negative. b. is positive, wis...
QUESTION 23 Which of the following statements is incorrect? a. A spontaneous process occurs under specified conditions without outside intervention. Ob. AGsys --TASuniv c. A nonspontaneous process occurs only if the surroundings continuously supply energy to the system. d. The relationship between AGⓇ and K at 25°C is: if K< 1, AG° <0. e. A spontaneous change may be exothermic or endothermic.
1. If q 60 kJ and w = 96 kJ for a certain process, that process (3) a. requires a catalyst. b. is endothermic. c. occurs slowly. d. is exothermic. e. cannot occur. 2. What is the change in internal energy of the system (AU) if 71 kJ of heat energy is absorbed by the system and 12 kJ of work is done on the system for a certain process? (4) a. 83 kJ b. 59 kJ c. 71 kJ...
Which of the following statements is incorrect? Select one: O a. When the recipient of a gift receives the gift she will pay gift taxes upon receipt of the O b. Deductible property taxes include taxes on personal property O c. The heir does not pay income tax on property she receives from the estate atardecedentes d. If a taxpayer buys a dishwasher in Oregon which charges no sales tax, she will owe use toxin California.
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