Homework Answers
According to the HOMEWORKLIB RULES I am answering the first question.
Sol-6
The correct answer is b
The pie is the system and loses heat to the surroundings.
According to thermodynamic any system placed openly in the surroundings tries to balance it's heat and tries to go to equilibrium. So as the baked pie is hotter than the environment it will loose heat till it reaches the environment temperature.
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mumber of the manganese increase by two units a b decrease by two units...
shly baked pie is placed near an open window to cool. Which of the following statements...
shly baked pie is placed near an open window to cool. Which of the following statements best situation? this a. The pic is the surroundings and loses heat to the system. b. The pic is the system and loses heat to the surroundings c. The pie is the surroundings and gains heat from the system. d. The pic is the surroundings and neither gains nor loses heat. e. The pie is the system and gains heat from the surroundings. 7....
INTE Auyeung к Yosselyn Castillo... K. Michael Miraglia X Karina Wong Kimberly Cal. mochemistry practice questions...
INTE Auyeung к Yosselyn Castillo... K. Michael Miraglia X Karina Wong Kimberly Cal. mochemistry practice questions Compatibility Mode] - Word Inic Tools Layout John Molina References Mailings Review View Help Pens Tell me what you want to do WR 12 VAA Aa 5.-214 U-XX 2A 5. Font Paragraph 1 L2 AaBbCct ABC ABCD AaBbC AaBbcc AaBbcc AaBC ABCD ABCD Heading 3 1 Nommal 1 No Spac. Heading 1 Heading 2 Heading 4 Subtitle Subtle Em 5 7 6. During an...
25) Objects can possess energy as (a) endothermic energy (b) potential energy (c) kinetic energy A) a only B) b...
25) Objects can possess energy as (a) endothermic energy (b) potential energy (c) kinetic energy A) a only B) b only C) c only D) bandc E) a and 33) The value of AH' for the reaction below is - 790 kl. The enthalpy change accompanying the reaction of 0.95 g of Sis_ k 33) 25 (s) + 302 (9) -2503 (9) A) 12 B) 23 C) -23 D) - 790 E) -12 34) The value of AH' for the...
1. Heat is best defined as a. massless substance emitted when something burns. b. a form...
1. Heat is best defined as a. massless substance emitted when something burns. b. a form of potential energy. c. a form of work. d. the total energy that a substance has. e. energy transferred as the result of a temperature difference. 2. The energy stored in chemical bonds is a form of a. kinetic energy. d. heat. b. thermal energy. e. mechanical energy. c. potential energy. 3. Energy that an object has by virtue of its motion is called...
Page 2 5. How many grams of NaCl are contained in 300 mL of a 0.250...
Page 2 5. How many grams of NaCl are contained in 300 mL of a 0.250 M solution of sodium chloride? a) 3.65 g b) 4.38 8 c) 10.4 g d) 14.6 g e) 29.9 g 6. Consider three identical 1 L flasks at STP. Flask A contains NH3 gas, flask B contains NO2 gas, flask C contains N2 gas. Which contains the largest number of molecules a) flask A b) flask B c) flask C d) each flask contains...
pleasee show me how to get the correct answers in preperation for my upcoming exam 2.)...
pleasee show me how to get the correct answers in preperation
for my upcoming exam
2.) D 3.) B 4.) D
2) A 5.00-g sample of copper metal at 25.0°C is heated by the addition of 133 J of energy. The final temperature of the copper is °C. The specific heat capacity of copper is 0.38 J/g-K. A) 45.0 B) 25.0 C) 70.0 D) 95.0 E) 35.1 250 3) The value of AE for a system that performs 151 kJ...
Which of the following is so oxidation-reduction reaction? A) Cu (s) + 2AgNO_3(aq) rightarrow 2Ag (s)...
Which of the following is so oxidation-reduction reaction? A) Cu (s) + 2AgNO_3(aq) rightarrow 2Ag (s) + Cu(NO_3)_2 (aq) B) HCl(aq) + NaOH(aq) rightarrow H_2O (l) + NaCl(aq) C) AgNO_3(aq) + HCl (aq) rightarrow AgCl (s) + N\HNO_3(aq) E) H_2CO_3(aQ) + Ca(NO_3)_2 (aq) rightarrow 2HNO_3(aq) + CaCO_3(s) How many moles of K^+ are present in 343 mL of a 1.27 M solution of K_3PO_4? A) 0.436 B) 1.31 C) 0.145 D) 3.70 E) 11.1 What is the concentration (M) of...
d two moles of hydrochlorhermal energy arck on the su ®, 150,0 kJ of thermal serey...
d two moles of hydrochlorhermal energy arck on the su ®, 150,0 kJ of thermal serey are released at 25.00°C and o the surroundings as work is d only P- 7. When one mole of zinc and two moles of hydrochloric acid undergo the read Zn(s) + 2 HCl(aq) → ZnCl, (aq) + He), 150,0 kJ of thermal energy are reicas 1.000 atm. The Ha gas generated does approximately 2 500 KJ of work on the surroundings as expands. Calculate...
1) A decrease in entropy is associated with which type of reaction? A) dehydration B) catabolic...
1) A decrease in entropy is associated with which type of reaction? A) dehydration B) catabolic C) depolymerization D) hydrolysis 2) Which of the following statements is an important consequence of the first law of thermodynamics for a living organism? A) The energy content of an organism is constant. B) An organism ultimately must obtain all of the necessary energy for life from its environment. C) The entropy of an organism decreases with time as the organism grows in complexity....
7. The break -even in units sold will decrease if there is an increase in: b....
7. The break -even in units sold will decrease if there is an increase in: b. Total fixed expenses e. Unit variable expenses d. Selling price e. None of the above Givens the following, the contributicn margin per unit is. , Sales (s6.000 unts) Variable Net operating income 8. the following, the contribution margin per unit is. $256,000 $160.000 a. $16 С.$2 prodacts on the basis of standard direct labor hours. If the labor 9. Variable manufacturing overhead is applied...
shly baked pie is placed near an open window to cool. Which of the following statements best situation? this a. The pic is the surroundings and loses heat to the system. b. The pic is the system and loses heat to the surroundings c. The pie is the surroundings and gains heat from the system. d. The pic is the surroundings and neither gains nor loses heat. e. The pie is the system and gains heat from the surroundings. 7....
INTE Auyeung к Yosselyn Castillo... K. Michael Miraglia X Karina Wong Kimberly Cal. mochemistry practice questions Compatibility Mode] - Word Inic Tools Layout John Molina References Mailings Review View Help Pens Tell me what you want to do WR 12 VAA Aa 5.-214 U-XX 2A 5. Font Paragraph 1 L2 AaBbCct ABC ABCD AaBbC AaBbcc AaBbcc AaBC ABCD ABCD Heading 3 1 Nommal 1 No Spac. Heading 1 Heading 2 Heading 4 Subtitle Subtle Em 5 7 6. During an...
25) Objects can possess energy as (a) endothermic energy (b) potential energy (c) kinetic energy A) a only B) b only C) c only D) bandc E) a and 33) The value of AH' for the reaction below is - 790 kl. The enthalpy change accompanying the reaction of 0.95 g of Sis_ k 33) 25 (s) + 302 (9) -2503 (9) A) 12 B) 23 C) -23 D) - 790 E) -12 34) The value of AH' for the...
1. Heat is best defined as a. massless substance emitted when something burns. b. a form of potential energy. c. a form of work. d. the total energy that a substance has. e. energy transferred as the result of a temperature difference. 2. The energy stored in chemical bonds is a form of a. kinetic energy. d. heat. b. thermal energy. e. mechanical energy. c. potential energy. 3. Energy that an object has by virtue of its motion is called...
Page 2 5. How many grams of NaCl are contained in 300 mL of a 0.250 M solution of sodium chloride? a) 3.65 g b) 4.38 8 c) 10.4 g d) 14.6 g e) 29.9 g 6. Consider three identical 1 L flasks at STP. Flask A contains NH3 gas, flask B contains NO2 gas, flask C contains N2 gas. Which contains the largest number of molecules a) flask A b) flask B c) flask C d) each flask contains...
pleasee show me how to get the correct answers in preperation
for my upcoming exam
2.) D 3.) B 4.) D
2) A 5.00-g sample of copper metal at 25.0°C is heated by the addition of 133 J of energy. The final temperature of the copper is °C. The specific heat capacity of copper is 0.38 J/g-K. A) 45.0 B) 25.0 C) 70.0 D) 95.0 E) 35.1 250 3) The value of AE for a system that performs 151 kJ...
Which of the following is so oxidation-reduction reaction? A) Cu (s) + 2AgNO_3(aq) rightarrow 2Ag (s) + Cu(NO_3)_2 (aq) B) HCl(aq) + NaOH(aq) rightarrow H_2O (l) + NaCl(aq) C) AgNO_3(aq) + HCl (aq) rightarrow AgCl (s) + N\HNO_3(aq) E) H_2CO_3(aQ) + Ca(NO_3)_2 (aq) rightarrow 2HNO_3(aq) + CaCO_3(s) How many moles of K^+ are present in 343 mL of a 1.27 M solution of K_3PO_4? A) 0.436 B) 1.31 C) 0.145 D) 3.70 E) 11.1 What is the concentration (M) of...
d two moles of hydrochlorhermal energy arck on the su ®, 150,0 kJ of thermal serey are released at 25.00°C and o the surroundings as work is d only P- 7. When one mole of zinc and two moles of hydrochloric acid undergo the read Zn(s) + 2 HCl(aq) → ZnCl, (aq) + He), 150,0 kJ of thermal energy are reicas 1.000 atm. The Ha gas generated does approximately 2 500 KJ of work on the surroundings as expands. Calculate...
1) A decrease in entropy is associated with which type of reaction? A) dehydration B) catabolic C) depolymerization D) hydrolysis 2) Which of the following statements is an important consequence of the first law of thermodynamics for a living organism? A) The energy content of an organism is constant. B) An organism ultimately must obtain all of the necessary energy for life from its environment. C) The entropy of an organism decreases with time as the organism grows in complexity....
7. The break -even in units sold will decrease if there is an increase in: b. Total fixed expenses e. Unit variable expenses d. Selling price e. None of the above Givens the following, the contributicn margin per unit is. , Sales (s6.000 unts) Variable Net operating income 8. the following, the contribution margin per unit is. $256,000 $160.000 a. $16 С.$2 prodacts on the basis of standard direct labor hours. If the labor 9. Variable manufacturing overhead is applied...
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