Homework Answers
![I Heat = mSoT - 15=2.5 x 4.18 (T-25] =) T-25 = 1.430 = 1.4 T= 25+1.4 = 26.4°C opton A 124) Given: N2(g) + Q(g) 2NO(g) on = +1](http://img.homeworklib.com/questions/b69b2d20-7575-11ea-a751-37bc61749c96.png?x-oss-process=image/resize,w_560)
19. Use the AHºf information provided to calculate AHºrxn for the following: 10 pts AHºf (kJ/mol)...
19. Use the AHºf information provided to calculate AHºrxn for the following: 10 pts AHºf (kJ/mol) SO2Cl2(g) + 2 H20(1) ► 2 HC (g) + H2SO4(1) AH°rxn- ? SO2Cl2(g)-364 H20(1) HCl(g) -286 1(-364) + 2 (-286) -2 (-92) + 1 (-814) = -364-572 +184 - 814 -92 H2SO4(1)-814 A) -256 kJ B) +161 kJ C) -62 kJ D) +800. kJ E) -422 kJ
7. Use the reaction enthalpies given below to determine AHºrxn for the following reaction: 8. Use...
7. Use the reaction enthalpies given below to determine AHºrxn for the following reaction: 8. Use the AHºf information provided to calculate AHºrxn for the following: P4(g) + 10 C12(g) + 4PC15(s) AHørxn = ? SO2Cl2(g) + 2 H2O(l) → 2 HCI(g) + H2804 Given: PC15(s) - PC13(g) + Cl2(g) P4(g) + 6 Cl2(g) - 4 PC13(g) AHørxn- +157 kJ Hºrxn=-1207 kJ AHºf (kJ/mol) SO2Cl2(g) H2O(1) HCl(g) H2S040) -364 -286 -92 -814 Voboty A) -2100. kJ B) -1835 kJ C)...
Which one of the following is FALSE? The following reaction 2 NO2(g) → 2 NO(g) +...
Which one of the following is FALSE? The following reaction 2 NO2(g) → 2 NO(g) + O2(g), Ahº, 1xn = +113.5 kJ, is not spontaneous at any temperature For the following reaction 2CO(g) + O2(g) → 2002(g) + 4 H2O(g), AH°rxn=-566 kJ, ASuniv is positive at low temperature but negative al high temperature Ο If ΔΗ. Orxn=-115 kJ and AsOrxn = +263 J/K, then ASuniv> 0 at all temperatures For the following reaction CO2(g) → C(s) + O2(g), AH, =...
only worth 1 point. 1. (6) 15.0 g of ice cubes at 0.0°C are combined with...
only worth 1 point. 1. (6) 15.0 g of ice cubes at 0.0°C are combined with 150.g of liquid water at 70.0°C in a coffee cup calorimeter. Calculate the final temperature reached, assuming no heat loss or gain from the calorimeter. (Data: specific heat capacity of H2O(l). C4.18 1/8 'C) H2O(s) → H2O(1) AH = 6.02 kJ/mol) 2. (6) Calculate A s for the reaction: 5C(s) + 6H2(g) → CsHuz10 Use the following reactions and given AH's. CsHua(l) + 802()...
Pi T2 = P₂ T 12) Calculate the standard free energy change at 25°C for the...
Pi T2 = P₂ T 12) Calculate the standard free energy change at 25°C for the reaction 2 NO(g) + O2(g) → 2 NO2(g). 12 46°E AH-TAS Species | AHºf, kJ/mol NO () 91.3 02 (8) 0.0 NO2 (8) 5, J/(K.mol) 210.7 205.0 240.0 33.2 A) -4.7 kJ (B) -72.6 kJ C) -157.8 kJ D) -532.6 kJ 13) The Boltzmann formula is S=k In W. A perfect crystal has a molar entropy of 0 at absolute zero because A) W=NA...
5. Given the following data: (2 H2 (g) + O2 (g) → 2 H2O (1) ro...
5. Given the following data: (2 H2 (g) + O2 (g) → 2 H2O (1) ro in each AH° = -571.6 kJ N20s (g) + H2O (1) 2 HNO3 (1) AH° = -76.6 kJ N2 (g) + 3 O2 (g) + H2 (g) → 2 HNO3 (1) AH° = -348.2 kJ a. Calculate the AHⓇ for the reaction: 2 N2 (g) + 5 O2 (g) → 2 N2O5 (g)
1.(3pts) Use the following data to determine the AH of > 8 CO (g) +5 H2O()...
1.(3pts) Use the following data to determine the AH of > 8 CO (g) +5 H2O() 2 C Hiog) +13 O2(g) AH (KJ/mol) Substance AH (kJ/mol) Substance Data: -104.0 CaH&(g) CHHОН() CH12(g) CH&(I) НО) Со N2(g) С.Н.8) CH2OH(I) -239.0 C&Hio(g) C&H12(I) H2O(g) CO(g) O2(g) 20.9 -201.0 -146.44 -126.15 +12.0 -156.4 285.83 -241.82 -393.51 -110.53 0
help with this please Ca(OH)2(aq) + 2 HCl(aq) +CaCl2(8) + 2 H2O(1) Using the standard thermodynamic...
help with this please
Ca(OH)2(aq) + 2 HCl(aq) +CaCl2(8) + 2 H2O(1) Using the standard thermodynamic data in the tables linked above, calculate the equilibrium constant for this reaction at 298.15K ANSWER: N2(g) + O2(g) +2NO(g) Using the standard thermodynamic data in the tables linked above, calculate the equilibrium constant for this reaction at 298.15K ANSWER: 2CO(g) + O2(g) +2002(9) - der e en manos de 20, ali ne more than one so mi dicogna undan Using standard thermodynamic data...
Practice with Hess's Law and Standard Heats of Formation 1. (Example) The reaction C He(g) +...
Practice with Hess's Law and Standard Heats of Formation 1. (Example) The reaction C He(g) + 6 F2 (g) → 2 CF4(g) + 4 HF (9) can be written as the sum of: CH4 (9) ► 2 C(s) + 2 Ha(o) AH = -52.3 kJ/mol 2 C(s) + 4 Faq) → 2 CF4g) SH -1380 kJ/mol 2 Haq) + 2 Fala) > 4 HF HE.1074 kJimol CsHe(g) + 6 F2 (g) → 2 CF.(g) + 4 HF (g) AH =...
Specific heat = 4.18 J/g*C MgO(s) + 2HCl(aq) → 2Cl(aq) + Mg(aq) + H2O(l): AH = A student added 0.250 g of Mg...
Specific heat = 4.18 J/g*C
MgO(s) + 2HCl(aq) → 2Cl(aq) + Mg(aq) + H2O(l): AH = A student added 0.250 g of MgO(s) to 45.0 mL HCI@ 22.0'C. The temp of the calorimeter rose to 23.5°C. What is qarin kJ? What is the AH in kJ/mol of Mgo for this reaction? Density HCI = 1.05 g/mL
19. Use the AHºf information provided to calculate AHºrxn for the following: 10 pts AHºf (kJ/mol) SO2Cl2(g) + 2 H20(1) ► 2 HC (g) + H2SO4(1) AH°rxn- ? SO2Cl2(g)-364 H20(1) HCl(g) -286 1(-364) + 2 (-286) -2 (-92) + 1 (-814) = -364-572 +184 - 814 -92 H2SO4(1)-814 A) -256 kJ B) +161 kJ C) -62 kJ D) +800. kJ E) -422 kJ
7. Use the reaction enthalpies given below to determine AHºrxn for the following reaction: 8. Use the AHºf information provided to calculate AHºrxn for the following: P4(g) + 10 C12(g) + 4PC15(s) AHørxn = ? SO2Cl2(g) + 2 H2O(l) → 2 HCI(g) + H2804 Given: PC15(s) - PC13(g) + Cl2(g) P4(g) + 6 Cl2(g) - 4 PC13(g) AHørxn- +157 kJ Hºrxn=-1207 kJ AHºf (kJ/mol) SO2Cl2(g) H2O(1) HCl(g) H2S040) -364 -286 -92 -814 Voboty A) -2100. kJ B) -1835 kJ C)...
Which one of the following is FALSE? The following reaction 2 NO2(g) → 2 NO(g) + O2(g), Ahº, 1xn = +113.5 kJ, is not spontaneous at any temperature For the following reaction 2CO(g) + O2(g) → 2002(g) + 4 H2O(g), AH°rxn=-566 kJ, ASuniv is positive at low temperature but negative al high temperature Ο If ΔΗ. Orxn=-115 kJ and AsOrxn = +263 J/K, then ASuniv> 0 at all temperatures For the following reaction CO2(g) → C(s) + O2(g), AH, =...
only worth 1 point. 1. (6) 15.0 g of ice cubes at 0.0°C are combined with 150.g of liquid water at 70.0°C in a coffee cup calorimeter. Calculate the final temperature reached, assuming no heat loss or gain from the calorimeter. (Data: specific heat capacity of H2O(l). C4.18 1/8 'C) H2O(s) → H2O(1) AH = 6.02 kJ/mol) 2. (6) Calculate A s for the reaction: 5C(s) + 6H2(g) → CsHuz10 Use the following reactions and given AH's. CsHua(l) + 802()...
Pi T2 = P₂ T 12) Calculate the standard free energy change at 25°C for the reaction 2 NO(g) + O2(g) → 2 NO2(g). 12 46°E AH-TAS Species | AHºf, kJ/mol NO () 91.3 02 (8) 0.0 NO2 (8) 5, J/(K.mol) 210.7 205.0 240.0 33.2 A) -4.7 kJ (B) -72.6 kJ C) -157.8 kJ D) -532.6 kJ 13) The Boltzmann formula is S=k In W. A perfect crystal has a molar entropy of 0 at absolute zero because A) W=NA...
5. Given the following data: (2 H2 (g) + O2 (g) → 2 H2O (1) ro in each AH° = -571.6 kJ N20s (g) + H2O (1) 2 HNO3 (1) AH° = -76.6 kJ N2 (g) + 3 O2 (g) + H2 (g) → 2 HNO3 (1) AH° = -348.2 kJ a. Calculate the AHⓇ for the reaction: 2 N2 (g) + 5 O2 (g) → 2 N2O5 (g)
1.(3pts) Use the following data to determine the AH of > 8 CO (g) +5 H2O() 2 C Hiog) +13 O2(g) AH (KJ/mol) Substance AH (kJ/mol) Substance Data: -104.0 CaH&(g) CHHОН() CH12(g) CH&(I) НО) Со N2(g) С.Н.8) CH2OH(I) -239.0 C&Hio(g) C&H12(I) H2O(g) CO(g) O2(g) 20.9 -201.0 -146.44 -126.15 +12.0 -156.4 285.83 -241.82 -393.51 -110.53 0
help with this please
Ca(OH)2(aq) + 2 HCl(aq) +CaCl2(8) + 2 H2O(1) Using the standard thermodynamic data in the tables linked above, calculate the equilibrium constant for this reaction at 298.15K ANSWER: N2(g) + O2(g) +2NO(g) Using the standard thermodynamic data in the tables linked above, calculate the equilibrium constant for this reaction at 298.15K ANSWER: 2CO(g) + O2(g) +2002(9) - der e en manos de 20, ali ne more than one so mi dicogna undan Using standard thermodynamic data...
Practice with Hess's Law and Standard Heats of Formation 1. (Example) The reaction C He(g) + 6 F2 (g) → 2 CF4(g) + 4 HF (9) can be written as the sum of: CH4 (9) ► 2 C(s) + 2 Ha(o) AH = -52.3 kJ/mol 2 C(s) + 4 Faq) → 2 CF4g) SH -1380 kJ/mol 2 Haq) + 2 Fala) > 4 HF HE.1074 kJimol CsHe(g) + 6 F2 (g) → 2 CF.(g) + 4 HF (g) AH =...
Specific heat = 4.18 J/g*C
MgO(s) + 2HCl(aq) → 2Cl(aq) + Mg(aq) + H2O(l): AH = A student added 0.250 g of MgO(s) to 45.0 mL HCI@ 22.0'C. The temp of the calorimeter rose to 23.5°C. What is qarin kJ? What is the AH in kJ/mol of Mgo for this reaction? Density HCI = 1.05 g/mL
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