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Question 1 -- / 10 A chemist is interested in running a new reaction. He/she has...
Question 5 The spontaneity of a reaction depends both on the enthalpy change, Delta H, and...
Question 5 The spontaneity of a reaction depends both on the enthalpy change, Delta H, and entropy change, Delta S. Reactions that release energy produce more stable products, and the universe tends toward disorder. Thus, an exothermic reaction with a positive entropy change will always be spontaneous. Mathematically, this relationship can be represented as where Delta G is the change in Gibbs free energy and T is the Kelvin temperature. If Delta G is negative, then the reaction is spontaneous....
Question 15 When delta G is negative (1 point) * None of the above O reaction...
Question 15 When delta G is negative (1 point) * None of the above O reaction is balanced in mass and energy O reaction is endothermic if entropy is positive reaction is exothermic if entropy is positive Question 16 When delta G is negative (1 point) * O None reactions are spontaneous because they were empirically determined and consistent with the theory Orx is at equilibrium Orx is non-spontaneous
Another chemist has found that a particular constant- pressure reaction is barely spontaneous at 390 K....
Another chemist has found that a particular constant- pressure reaction is barely spontaneous at 390 K. The enthalpy change for the reaction is +23.700 J. Estimate delta S for the reaction. 1 greater than 61 J/K 2 less than 61 J/K 3 Greater than 16.5J/K 4 Less than 16.5 J/K
Question 12 When delta G is negative (1 point)* entropy is high and enthalpy low entropy...
Question 12 When delta G is negative (1 point)* entropy is high and enthalpy low entropy low and enthalpy high when entropy is negative when entropy is zero Question 13 Question 13 When delta G is negative (1 point) * O initial G is high and final G is low initial G is low and final G is high intial G is in equilibrium with final G O none Question 14 When delta G is negative (1 point) * O...
1. Which of the following real gases has the largest isobaric heat capacity, Cp: a) He...
1. Which of the following real gases has the largest isobaric heat capacity, Cp: a) He b) Rn c) N2 d) XeF2 e) all gases have the same heat capacity 2. Predict the change in entropy (AS) for the following reaction (D is used for deuterium, H) NDaBr (s) → ND; (g) + DBr (g) a) Positive b) Negative c) Near Zero d) Exactly Zero e) none of the above 3. The values of q, w, AU and AH for...
Question 5 When delta G is negative (1 point) * enthalpy is negative reaction is spontaneous...
Question 5 When delta G is negative (1 point) * enthalpy is negative reaction is spontaneous rx is at equilibrium rx is non-spontaneous Question 6 If a rx has delta S positive and delta H negative, the rx is (1 point) * non-spontaneous at all temp O spontaneous at all temp spontaneous only at high temp O spontaneous only at low temp
How Do I solve question 8, 10 and 13? Activity #1: Dissolution of ammonium nitrate in...
How Do I solve question 8, 10 and 13?
Activity #1: Dissolution of ammonium nitrate in water Fill a 100 ml beaker half-full with water. Place your hand on the outside of the beaker to gauge the temperature Add a large scoop of ammonium nitrate to the beaker and stir. Feel the temperature of the beaker as the ammonium nitrate dissolves. 1. Write the molecular and total ionic equations for the dissolution of ammonium nitrate. MOLECULAR EQUATION: NH4NO3 +H20) NH4OH...
QUESTION 1 June has never met Donald Trump but she believes that he is her daughter's...
QUESTION 1 June has never met Donald Trump but she believes that he is her daughter's father. She has told this to her family and friends. June is likely experiencing: a. An Erotamatic fantasy b. Deceptive disorder c. Delusions d. Hallucinations 1 points QUESTION 2 Jerome has gone to see his doctor. He is worried there is something wrong with him because last week he was having sex with his girlfriend and he ejaculated before she was able to orgasm. This...
8. Last year, the mean running time for a certain type of flashlight battery was 8...
8. Last year, the mean running time for a certain type of flashlight battery was 8 hours. This year, the manufacturer has introduced a change in the production method which he hopes will increase the mean running time. A random sample of 36 of the new light bulbs was obtained and the mean running time was found to be 8.3 hours with s=1 hours. Do the data provide sufficient evidence to conclude that the mean running time, u, of the...
Thermodynamics Practice Problems 1. Predict the sign of AS.(positive or negative) for the following reactions a...
Thermodynamics Practice Problems 1. Predict the sign of AS.(positive or negative) for the following reactions a 2 Mg(s) +,(@) 2 Mgo (s) AS b. CH206(s) → 2C,H,OH(I) + 2003(g) AS c. 2 NH3(g) + CO2(g) → H2O(l) + NH CONH3(aq) AS d. Cu(s) (at 100°C) → Cu(s) (at 25°C) AS 2. Which two variables can indicate if a reaction is spontaneous or not? 3. The second law of thermodynamics tells us that: a Energy is conserved. b. The entropy of...
Question 5 The spontaneity of a reaction depends both on the enthalpy change, Delta H, and entropy change, Delta S. Reactions that release energy produce more stable products, and the universe tends toward disorder. Thus, an exothermic reaction with a positive entropy change will always be spontaneous. Mathematically, this relationship can be represented as where Delta G is the change in Gibbs free energy and T is the Kelvin temperature. If Delta G is negative, then the reaction is spontaneous....
Question 15 When delta G is negative (1 point) * None of the above O reaction is balanced in mass and energy O reaction is endothermic if entropy is positive reaction is exothermic if entropy is positive Question 16 When delta G is negative (1 point) * O None reactions are spontaneous because they were empirically determined and consistent with the theory Orx is at equilibrium Orx is non-spontaneous
Another chemist has found that a particular constant- pressure reaction is barely spontaneous at 390 K. The enthalpy change for the reaction is +23.700 J. Estimate delta S for the reaction. 1 greater than 61 J/K 2 less than 61 J/K 3 Greater than 16.5J/K 4 Less than 16.5 J/K
Question 12 When delta G is negative (1 point)* entropy is high and enthalpy low entropy low and enthalpy high when entropy is negative when entropy is zero Question 13 Question 13 When delta G is negative (1 point) * O initial G is high and final G is low initial G is low and final G is high intial G is in equilibrium with final G O none Question 14 When delta G is negative (1 point) * O...
1. Which of the following real gases has the largest isobaric heat capacity, Cp: a) He b) Rn c) N2 d) XeF2 e) all gases have the same heat capacity 2. Predict the change in entropy (AS) for the following reaction (D is used for deuterium, H) NDaBr (s) → ND; (g) + DBr (g) a) Positive b) Negative c) Near Zero d) Exactly Zero e) none of the above 3. The values of q, w, AU and AH for...
Question 5 When delta G is negative (1 point) * enthalpy is negative reaction is spontaneous rx is at equilibrium rx is non-spontaneous Question 6 If a rx has delta S positive and delta H negative, the rx is (1 point) * non-spontaneous at all temp O spontaneous at all temp spontaneous only at high temp O spontaneous only at low temp
How Do I solve question 8, 10 and 13?
Activity #1: Dissolution of ammonium nitrate in water Fill a 100 ml beaker half-full with water. Place your hand on the outside of the beaker to gauge the temperature Add a large scoop of ammonium nitrate to the beaker and stir. Feel the temperature of the beaker as the ammonium nitrate dissolves. 1. Write the molecular and total ionic equations for the dissolution of ammonium nitrate. MOLECULAR EQUATION: NH4NO3 +H20) NH4OH...
8. Last year, the mean running time for a certain type of flashlight battery was 8 hours. This year, the manufacturer has introduced a change in the production method which he hopes will increase the mean running time. A random sample of 36 of the new light bulbs was obtained and the mean running time was found to be 8.3 hours with s=1 hours. Do the data provide sufficient evidence to conclude that the mean running time, u, of the...
Thermodynamics Practice Problems 1. Predict the sign of AS.(positive or negative) for the following reactions a 2 Mg(s) +,(@) 2 Mgo (s) AS b. CH206(s) → 2C,H,OH(I) + 2003(g) AS c. 2 NH3(g) + CO2(g) → H2O(l) + NH CONH3(aq) AS d. Cu(s) (at 100°C) → Cu(s) (at 25°C) AS 2. Which two variables can indicate if a reaction is spontaneous or not? 3. The second law of thermodynamics tells us that: a Energy is conserved. b. The entropy of...
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