Consider the following reactions. NiSO3(s) →NiO (s) + SO2 (g) ∆H= 162.0 kJ SO2 (g) → 1/8 S8(s) + O2 (g) ∆H= 290.0 kJ 2Ni (s) + O2 (g) → 2NiO (s) ∆H= -478.0 kJ A) Calculate ∆H (in kJ) for the reaction. 8Ni (s) + S8(s) + 12O2 (g) →8NiSO3 (s) B) Calculate ∆H (in kJ) for the decomposition reaction of 2.00 g of NiSO3(s) according to the reaction. 8NiSO3 (s)→ 8Ni (s) + S8(s) + 12O2 (g) C) Carbon tetrachloride (CCl4) was at one time used as a fire-extinguishing agent. The molar heat capacity is 131.3 J/(mol°C). Calculate the amount of energy in kJ required to raise the temperature of 22.0 g of CCl4 from 22.0 °C to 66.0 °C.
Consider the following reactions. NiSO3(s) →NiO (s) + SO2 (g) ∆H= 162.0 kJ SO2 (g) → 1/8 S8(s) + O2 (g) ∆H= 290.0 kJ 2Ni (s) + O2 (g) → 2NiO (s) ∆H= -478.0 kJ A) Calculate ∆H (in kJ) for the reaction. 8Ni (s) + S8(s) + 12O2 (g) →8NiSO3 (s) B) Calculate ∆H (in kJ) for the decomposition reaction of 2.00 g of NiSO3(s) according to the reaction. 8NiSO3 (s)→ 8Ni (s) + S8(s) + 12O2 (g) C) Carbon tetrachloride (CCl4) was at one time used as a fire-extinguishing agent. The molar heat capacity is 131.3 J/(mol°C). Calculate the amount of energy in kJ required to raise the temperature of 22.0 g of CCl4 from 22.0 °C to 66.0 °C.
Chapter6: Thermochemistry
Section: Chapter Questions
Problem 111AE: At 298 K, the standard enthalpies of formation for C2H2(g) and C6H6(l) are 227 kJ/mol and 49 kJ/mol,...
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Question
Consider the following reactions.
- NiSO3(s) →NiO (s) + SO2 (g) ∆H= 162.0 kJ
- SO2 (g) → 1/8 S8(s) + O2 (g) ∆H= 290.0 kJ
- 2Ni (s) + O2 (g) → 2NiO (s) ∆H= -478.0 kJ
A) Calculate ∆H (in kJ) for the reaction.
8Ni (s) + S8(s) + 12O2 (g) →8NiSO3 (s)
B)
Calculate ∆H (in kJ) for the decomposition reaction of 2.00 g of NiSO3(s) according to the reaction.
8NiSO3 (s)→ 8Ni (s) + S8(s) + 12O2 (g)
C)
Carbon tetrachloride (CCl4) was at one time used as a fire-extinguishing agent.
The molar heat capacity is 131.3 J/(mol°C). Calculate the amount of energy in kJ required to raise the temperature of 22.0 g of CCl4 from 22.0 °C to 66.0 °C.
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