You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Chemistry

Stoichiometry

1 gram sample...

Question

1 gram sample of $N H_{4} N O_{3}$ is decomposed in a bomb calorimeter. The temperature of the calorimeter increases by 6.12 K. The heat capacity of the system is 1.23 kJ/g-deg. What is the molar heat of decomposition for $N H_{4} N O_{3}$ ?

-7.53 kJ/mol

No worries! We‘ve got your back. Try BYJU‘S free classes today!

-398.1 kJ/mol

No worries! We‘ve got your back. Try BYJU‘S free classes today!

-16.1 kJ/mol

No worries! We‘ve got your back. Try BYJU‘S free classes today!

602 kJ/mol

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is A 602 kJ/mol
The expression for the heat evolved is $q = m S Δ T$
When 1g of ammonium nitrate decomposes, the heat evolved is $q = 1 \times 1.23 \times 6.12$
When 1 mole of ammonium nitrate decomposes, the heat evolved is $q = 1 \times 1.23 \times 6.12 \times 80 = 6 02.21 k J / m o l$

Suggest Corrections

Similar questions

Q. One gram sample of

N H_{4} N O_{3}

is decomposed in a bomb calorimeter, the temperature of the calorimeter increases by

6.12 K

. The heat capacity of the system is

1.23 k J / g / d e g

. What is the molar heat of decomposition for

N H_{4} N O_{3}

Q. One gram sample of

{N H}_{4} {N O}_{3}

is decomposed in a bomb calorimeter. The temperature of the calorimeter increase by

6.12 K

. The heat capacity of the system is

1.23 k J / g / K .

What is the molar heat of decomposition for

{N H}_{4} {N O}_{3}

When $1.0 g$ of oxalic acid ( $H_{2} C_{2} O_{4})$ is burned in a bomb calorimeter whose heat capacity is $8.75 k J / K$ , the temperature increased by $0.312 K$ . The enthalpy of combustion of oxalic acid at $27^{\circ} C$ .

Q. One gm sample of

N H_{4} N O_{3} (s)

is decomposed in a bomb calorimeter (constant volume). The temperature of the calorimeter system falls by

6 K

. If the heat capacity of system is

1.25 k J / K

, what is the molar enthalpy of decomposition of

N H_{4} N O_{3} (s)

300 K

[R = 8.3 J K^{- 1} m o l^{- 1}]

Q. One gram sample of ammonium nitrate is decomposed in a bomb calorimeter. The temperature of calorimeter increases by

6.12 K

. The heat capacity of the system is

1.23 k J / g / d e g

. What is the molar heat of decomposition of

{N H}_{4} {N O}_{3}

Join BYJU'S Learning Program

1 gram sample of NH4NO3 is decomposed in a bomb calorimeter. The temperature of the calorimeter increases by 6.12 K. The heat capacity of the system is 1.23 kJ/g-deg. What is the molar heat of decomposition for NH4NO3?

The correct option is A 602 kJ/molThe expression for the heat evolved is q=mSΔTWhen 1g of ammonium nitrate decomposes, the heat evolved is q=1×1.23×6.12When 1 mole of ammonium nitrate decomposes, the heat evolved is q=1×1.23×6.12×80=602.21kJ/mol

1 gram sample of $N H_{4} N O_{3}$ is decomposed in a bomb calorimeter. The temperature of the calorimeter increases by 6.12 K. The heat capacity of the system is 1.23 kJ/g-deg. What is the molar heat of decomposition for $N H_{4} N O_{3}$ ?