Homework Answers
1. SF6 (g) has 291.5J/mole-K
Gases have entropy than liquids and solids
2. B
disorder is decreases entropy is decreases.
3. deltaH = -ve and deltaS = -ve spontaneous at low temperature
a. The reaction spontanoues at only low temperature
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Need serious help on these 3! Please help!
Which of the following should have the largest...
All four please thank you Which of the following is necessary for a process to be...
All four please thank you
Which of the following is necessary for a process to be spontaneous? A) Delta H_sys < 0 B) Delta S_sys > 0 C) Delta S < 0 D) Delta S_univ > 0 E) Delta G_sys = 0 Which reaction has the largest Delta S degree? A) 2 N_2H_4(g) rightarrow 2 NH_3(g) + H_2(g) B) O_2(g) + 2 H_2(g) rightarrow 2 H_2O(l) C) O_2(g) + 2 H_2(g) rightarrow 2H_2O(g) D) N_2(g) + 3H_2(g) rightarrow 2NH_3(g) E)...
please help ASAP One mole of ____ contains the least number of atoms. A) S_8 B)CH_4...
please help ASAP
One mole of ____ contains the least number of atoms. A) S_8 B)CH_4 C)Al_2(SO_4)_3 D)Na_3PO_4 E) C_6H_14 Which of these compounds is a weak electrolyte? A) NaCl B) HNO_3 C) C_6H_12O_6 (glucose) D) CH_3COOH (acetic acid) E) H_2SO_4 For the reaction shown below, which of the following is a conjugate acid-base pair? C_5H_5N(aq) + H_20(l) C_5H_5NH^+(aq) + OH^-(aq) A) C_5H_5N. H_2O B) C_5H_5N, C_5H_5N C) C_5H_5NH^+, OH^- D) H_2O. C^5H_5NH^+ E) H_2O, OH^- The reaction shown below...
Help and please show steps Part A Above what temperature does the following reaction become nonspontaneous?...
Help and please show steps
Part A Above what temperature does the following reaction become nonspontaneous? FeO(s) + CO(g) + CO2(g) + Fe(s) AH = -11.0 kJ; , AS = -17.4 J/K O 298 K O 632 K O 191 K O This reaction is nonspontaneous at all temperatures. O This reaction is spontaneous at all temperatures. Submit Request Answer Provide Feedback Part A Place the following in order of increasing entropy at 298 K. Ne Xe He Ar Kr...
3) Answer all parts of the following question. a. The reaction: Al(s) + Fe2O3(s) → Fe(s)...
3) Answer all parts of the following question. a. The reaction: Al(s) + Fe2O3(s) → Fe(s) + Al2O3(s) has ΔH = -847.6 kJ and ΔS = -41.3 J/K at 25°C. Calculate ΔG and determine if it is spontaneous. b. Above what temperature does the following reaction become nonspontaneous? FeO(s) + CO(g) → CO2(g) + Fe(s) ΔH = -11.0 kJ; ΔS = -17.4 J/K c. Find ΔSsurr and predict whether or not this reaction will be spontaneous at 398 K. NH3(g)...
Help For which of the following chemical equations are the stoichiometric coefficients of at least two...
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For which of the following chemical equations are the stoichiometric coefficients of at least two substances the same when the equations is Na_3PO_4(aq) + AgNO_3 (aq) rightarrow Ag_3PO_4(s) + NANO_3(aq) C_3H_4(g) +O_2(g) rightarrow H_2O(g) + CO_2(g) H_3PO_4(aq) +Mg(OH)_2(s) rightarrow H_2O(J) + Mg_3(PO_4)_2(s) Which of the following chemical equations is NOT balanced? H_3PO_4(aq) -Al(OH)_3(s) rightarrow 3 H_2O(l) + AlPO_2(s)
Which of the following molecules or ions is NOT polar? PCl_3 I_3^- H_2O N_2O SO_2 An...
Which of the following molecules or ions is NOT polar? PCl_3 I_3^- H_2O N_2O SO_2 An iron ore, magnetite, contains only iron and oxygen. In refining 100.0g of the ore, 72.35 g of iron are obtained. What is the empirical formula of the ore? Fe_2O_3 Fe_2O_4 FeO_2 FeO Fe_2O_5 Fe_2O_2(s) and powdered aluminum can react with great output of heat to form molten iron and Al_2O_3 when this reaction equation is balanced, what are the stoichiometric coeeficients in the following...
HELP!!!!! as soon as possible Question 9 (1 point) Which of the following reactions would show...
HELP!!!!! as soon as possible
Question 9 (1 point) Which of the following reactions would show an increase in entran apply. O CaCO3 (s) CaO (s) + CO28) C6H6(s) C6H6() 4 NO (g) + 6 H20 (8) 4 NH3(g) + 5 O2 (g) 2 NIS (s) + 3 O2 (g) - 2 SO2(g) + 2 NIO (s) 2503(9) 2SO2(g) + O2(g) 3 Question 8 (1 point) Which of the following has the highest entoon C6H12(l) at 200 K in a...
Hello , please help me to answer the following 3 questions: Fe_2O_3(s) + CO_(g) rightarrow Fe_(S)...
Hello , please help me to answer the following 3
questions:
Fe_2O_3(s) + CO_(g) rightarrow Fe_(S) + CO_2(g) (unbalanced) Calculate the number of grams of CO that can react with 0.517 kg of Fe_2O_3. Consider the following equation: N_2(g) + 3 H_2(g) rightarrow 2 NH_3(g), how many molecules of ammonia are produced when 36.5 liters of hydrogen react at STP (in excess nitrogen)? Given C_3H_8 + O_2 rightarrow CO_2 + H_2O (balance the equation) When 25.0 grams of C_3H_8 react...
The solubility of lead(II) fluoride, PbF_2, in pure water is 2.1 times 10^-3 moles per liter....
The solubility of lead(II) fluoride, PbF_2, in pure water is 2.1 times 10^-3 moles per liter. Calculate the value of K_sp for lead(II) fluoride from this data. a. 1.3 times 10^-7 b. 1.9 times 10^-8 c. 3.7 times 10^-8 d. 1.6 times 10^-9 e. 9.3 times 10^-9 In an experiment, it is planned to add 300 mL of 2.0 times 10^-5 M AgNO_3 to 300 mL of 2.0 times 10^-9 M NaI. Will a precipitate form? What is the precipitate?...
8. For the following reaction, CC2(s) + 2H2O(l) + Ca(OH)2(s) + C2H2(g) which is spontaneous at all temperatures, on...
8. For the following reaction, CC2(s) + 2H2O(l) + Ca(OH)2(s) + C2H2(g) which is spontaneous at all temperatures, one would predict that a. AG is positive for all temperatures. d. AH is - and AS is for the reaction. b. AH is + and AS is for the reaction. e. AH is + and AS' is- for the reaction. c. AH is - and AS is for the reaction. 9. Calculate the standard absolute entropy, in J/mol K. of Mg:...
All four please thank you
Which of the following is necessary for a process to be spontaneous? A) Delta H_sys < 0 B) Delta S_sys > 0 C) Delta S < 0 D) Delta S_univ > 0 E) Delta G_sys = 0 Which reaction has the largest Delta S degree? A) 2 N_2H_4(g) rightarrow 2 NH_3(g) + H_2(g) B) O_2(g) + 2 H_2(g) rightarrow 2 H_2O(l) C) O_2(g) + 2 H_2(g) rightarrow 2H_2O(g) D) N_2(g) + 3H_2(g) rightarrow 2NH_3(g) E)...
please help ASAP
One mole of ____ contains the least number of atoms. A) S_8 B)CH_4 C)Al_2(SO_4)_3 D)Na_3PO_4 E) C_6H_14 Which of these compounds is a weak electrolyte? A) NaCl B) HNO_3 C) C_6H_12O_6 (glucose) D) CH_3COOH (acetic acid) E) H_2SO_4 For the reaction shown below, which of the following is a conjugate acid-base pair? C_5H_5N(aq) + H_20(l) C_5H_5NH^+(aq) + OH^-(aq) A) C_5H_5N. H_2O B) C_5H_5N, C_5H_5N C) C_5H_5NH^+, OH^- D) H_2O. C^5H_5NH^+ E) H_2O, OH^- The reaction shown below...
Help and please show steps
Part A Above what temperature does the following reaction become nonspontaneous? FeO(s) + CO(g) + CO2(g) + Fe(s) AH = -11.0 kJ; , AS = -17.4 J/K O 298 K O 632 K O 191 K O This reaction is nonspontaneous at all temperatures. O This reaction is spontaneous at all temperatures. Submit Request Answer Provide Feedback Part A Place the following in order of increasing entropy at 298 K. Ne Xe He Ar Kr...
Help
For which of the following chemical equations are the stoichiometric coefficients of at least two substances the same when the equations is Na_3PO_4(aq) + AgNO_3 (aq) rightarrow Ag_3PO_4(s) + NANO_3(aq) C_3H_4(g) +O_2(g) rightarrow H_2O(g) + CO_2(g) H_3PO_4(aq) +Mg(OH)_2(s) rightarrow H_2O(J) + Mg_3(PO_4)_2(s) Which of the following chemical equations is NOT balanced? H_3PO_4(aq) -Al(OH)_3(s) rightarrow 3 H_2O(l) + AlPO_2(s)
Which of the following molecules or ions is NOT polar? PCl_3 I_3^- H_2O N_2O SO_2 An iron ore, magnetite, contains only iron and oxygen. In refining 100.0g of the ore, 72.35 g of iron are obtained. What is the empirical formula of the ore? Fe_2O_3 Fe_2O_4 FeO_2 FeO Fe_2O_5 Fe_2O_2(s) and powdered aluminum can react with great output of heat to form molten iron and Al_2O_3 when this reaction equation is balanced, what are the stoichiometric coeeficients in the following...
HELP!!!!! as soon as possible
Question 9 (1 point) Which of the following reactions would show an increase in entran apply. O CaCO3 (s) CaO (s) + CO28) C6H6(s) C6H6() 4 NO (g) + 6 H20 (8) 4 NH3(g) + 5 O2 (g) 2 NIS (s) + 3 O2 (g) - 2 SO2(g) + 2 NIO (s) 2503(9) 2SO2(g) + O2(g) 3 Question 8 (1 point) Which of the following has the highest entoon C6H12(l) at 200 K in a...
Hello , please help me to answer the following 3
questions:
Fe_2O_3(s) + CO_(g) rightarrow Fe_(S) + CO_2(g) (unbalanced) Calculate the number of grams of CO that can react with 0.517 kg of Fe_2O_3. Consider the following equation: N_2(g) + 3 H_2(g) rightarrow 2 NH_3(g), how many molecules of ammonia are produced when 36.5 liters of hydrogen react at STP (in excess nitrogen)? Given C_3H_8 + O_2 rightarrow CO_2 + H_2O (balance the equation) When 25.0 grams of C_3H_8 react...
The solubility of lead(II) fluoride, PbF_2, in pure water is 2.1 times 10^-3 moles per liter. Calculate the value of K_sp for lead(II) fluoride from this data. a. 1.3 times 10^-7 b. 1.9 times 10^-8 c. 3.7 times 10^-8 d. 1.6 times 10^-9 e. 9.3 times 10^-9 In an experiment, it is planned to add 300 mL of 2.0 times 10^-5 M AgNO_3 to 300 mL of 2.0 times 10^-9 M NaI. Will a precipitate form? What is the precipitate?...
8. For the following reaction, CC2(s) + 2H2O(l) + Ca(OH)2(s) + C2H2(g) which is spontaneous at all temperatures, one would predict that a. AG is positive for all temperatures. d. AH is - and AS is for the reaction. b. AH is + and AS is for the reaction. e. AH is + and AS' is- for the reaction. c. AH is - and AS is for the reaction. 9. Calculate the standard absolute entropy, in J/mol K. of Mg:...
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