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One gram sample of NH4NO3 is decomposed in a bomb calorimeter the temperature of the calorimeter increases by 6.12k the heat capacity of the system is 1.23kj/g/deg what is the molar heat of decomposition of NH4NO3? a)-7.53kj/mol. b)-398.1kj/mol. c)-16.1kj/mol. d)-602kj/mol?
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One gram sample of NH4NO3 is decomposed in a bomb calorimeter the temp...
Calculation of Heat Released
To find the molar heat of decomposition of NH4NO3, we first need to calculate the heat absorbed by the calorimeter.
- Heat absorbed (q) is calculated using the formula:
q = C × ΔT
where:
C = heat capacity of the system (1.23 kJ/g/°C)
ΔT = change in temperature (6.12 K)
- Substituting the values:
q = 1.23 kJ/g/°C × 6.12°C
q = 7.52 kJ (rounded to two decimal places)
Determining Moles of NH4NO3
Next, we need to find the number of moles of NH4NO3 in the 1 gram sample.
- Molar mass of NH4NO3:
N: 14.01 g/mol × 2 = 28.02 g/mol
H: 1.01 g/mol × 4 = 4.04 g/mol
O: 16.00 g/mol × 3 = 48.00 g/mol
Total = 28.02 + 4.04 + 48.00 = 80.06 g/mol
- Calculating moles:
Moles = mass (g) / molar mass (g/mol)
Moles = 1 g / 80.06 g/mol = 0.0125 mol
Calculating Molar Heat of Decomposition
Now, we can calculate the molar heat of decomposition.
- Molar heat of decomposition (ΔH):
ΔH = q / moles
ΔH = 7.52 kJ / 0.0125 mol
ΔH = 601.6 kJ/mol (rounded to one decimal place)
Conclusion
The molar heat of decomposition of NH4NO3 is approximately -602 kJ/mol (negative sign indicates exothermic reaction).
- Correct answer: d) -602 kJ/mol
To find the molar heat of decomposition of NH4NO3, we first need to calculate the heat absorbed by the calorimeter.
- Heat absorbed (q) is calculated using the formula:
q = C × ΔT
where:
C = heat capacity of the system (1.23 kJ/g/°C)
ΔT = change in temperature (6.12 K)
- Substituting the values:
q = 1.23 kJ/g/°C × 6.12°C
q = 7.52 kJ (rounded to two decimal places)
Determining Moles of NH4NO3
Next, we need to find the number of moles of NH4NO3 in the 1 gram sample.
- Molar mass of NH4NO3:
N: 14.01 g/mol × 2 = 28.02 g/mol
H: 1.01 g/mol × 4 = 4.04 g/mol
O: 16.00 g/mol × 3 = 48.00 g/mol
Total = 28.02 + 4.04 + 48.00 = 80.06 g/mol
- Calculating moles:
Moles = mass (g) / molar mass (g/mol)
Moles = 1 g / 80.06 g/mol = 0.0125 mol
Calculating Molar Heat of Decomposition
Now, we can calculate the molar heat of decomposition.
- Molar heat of decomposition (ΔH):
ΔH = q / moles
ΔH = 7.52 kJ / 0.0125 mol
ΔH = 601.6 kJ/mol (rounded to one decimal place)
Conclusion
The molar heat of decomposition of NH4NO3 is approximately -602 kJ/mol (negative sign indicates exothermic reaction).
- Correct answer: d) -602 kJ/mol
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One gram sample of NH4NO3 is decomposed in a bomb calorimeter the temperature of the calorimeter increases by 6.12k the heat capacity of the system is 1.23kj/g/deg what is the molar heat of decomposition of NH4NO3? a)-7.53kj/mol. b)-398.1kj/mol. c)-16.1kj/mol. d)-602kj/mol?
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One gram sample of NH4NO3 is decomposed in a bomb calorimeter the temperature of the calorimeter increases by 6.12k the heat capacity of the system is 1.23kj/g/deg what is the molar heat of decomposition of NH4NO3? a)-7.53kj/mol. b)-398.1kj/mol. c)-16.1kj/mol. d)-602kj/mol? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about One gram sample of NH4NO3 is decomposed in a bomb calorimeter the temperature of the calorimeter increases by 6.12k the heat capacity of the system is 1.23kj/g/deg what is the molar heat of decomposition of NH4NO3? a)-7.53kj/mol. b)-398.1kj/mol. c)-16.1kj/mol. d)-602kj/mol? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for One gram sample of NH4NO3 is decomposed in a bomb calorimeter the temperature of the calorimeter increases by 6.12k the heat capacity of the system is 1.23kj/g/deg what is the molar heat of decomposition of NH4NO3? a)-7.53kj/mol. b)-398.1kj/mol. c)-16.1kj/mol. d)-602kj/mol?.
One gram sample of NH4NO3 is decomposed in a bomb calorimeter the temperature of the calorimeter increases by 6.12k the heat capacity of the system is 1.23kj/g/deg what is the molar heat of decomposition of NH4NO3? a)-7.53kj/mol. b)-398.1kj/mol. c)-16.1kj/mol. d)-602kj/mol? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about One gram sample of NH4NO3 is decomposed in a bomb calorimeter the temperature of the calorimeter increases by 6.12k the heat capacity of the system is 1.23kj/g/deg what is the molar heat of decomposition of NH4NO3? a)-7.53kj/mol. b)-398.1kj/mol. c)-16.1kj/mol. d)-602kj/mol? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for One gram sample of NH4NO3 is decomposed in a bomb calorimeter the temperature of the calorimeter increases by 6.12k the heat capacity of the system is 1.23kj/g/deg what is the molar heat of decomposition of NH4NO3? a)-7.53kj/mol. b)-398.1kj/mol. c)-16.1kj/mol. d)-602kj/mol?.
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One gram sample of NH4NO3 is decomposed in a bomb calorimeter the temperature of the calorimeter increases by 6.12k the heat capacity of the system is 1.23kj/g/deg what is the molar heat of decomposition of NH4NO3? a)-7.53kj/mol. b)-398.1kj/mol. c)-16.1kj/mol. d)-602kj/mol?, a detailed solution for One gram sample of NH4NO3 is decomposed in a bomb calorimeter the temperature of the calorimeter increases by 6.12k the heat capacity of the system is 1.23kj/g/deg what is the molar heat of decomposition of NH4NO3? a)-7.53kj/mol. b)-398.1kj/mol. c)-16.1kj/mol. d)-602kj/mol? has been provided alongside types of One gram sample of NH4NO3 is decomposed in a bomb calorimeter the temperature of the calorimeter increases by 6.12k the heat capacity of the system is 1.23kj/g/deg what is the molar heat of decomposition of NH4NO3? a)-7.53kj/mol. b)-398.1kj/mol. c)-16.1kj/mol. d)-602kj/mol? theory, EduRev gives you an
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