Enthalpy of combustion of carbon to ${C O}_{2}$ is $- 393.5 k J {m o l}^{- 1}$ . The heat released upon formation of $35.2 g$ of ${C O}_{2}$ from carbon and dioxygen gas is:

[Molar mass of ${C O}_{2} = 44 g {m o l}^{- 1}$ ]

3.148 k J

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

31.48 k J

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

314.8 k J

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

3148 k J

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

Open in App

Solution

The correct option is C $314.8 k J$
$C (s) + O_{2} (g) ⟶ {C O}_{2} (g) 44 g$
$Δ H = - 393.5 k J {m o l}^{- 1}$

The heat released in the formation of $C O_{2}$

$44 g {C O}_{2}$ requires $393.5 k J$ .

$∴$ Heat released in the formation of $35.2 g {C O}_{2} = \frac{393.5 k J \times 35.2 g}{44 g} = 314.8 k J$

Hence, option C is correct.

Suggest Corrections

Similar questions

Enthalpy of combustion of carbon to CO₂ is –393.5 kJ mol^–1. Calculate the heat released upon formation of 35.2 g of CO₂ from carbon and dioxygen gas.

Q. Enthalpy of combustion of carbon to

{C O}_{2}

is -393.5kJ per mol. Calculate the heat released upon formation of 35.2g of

{C O}_{2}

from carbon and dioxygen gas

Q. The heat of combustion of carbon to

C O_{2}

is -393.5 kJ/mol. The heat released upon formation of 35.2g of

C O_{2}

from carbon and oxygen gas is

Q. The heat of combustion of carbon to

C O_{2}

- 393.5 kJ/mol.

The heat released upon formation of

35.2 g

C O_{2}

from carbon and oxygen gas is:

Q. The heat of combustion of carbon to

{C O}_{2} (g)

- 393.5 k J {m o l}^{- 1}

. Calculate the heat released upon formation of

35.2 g

{C O}_{2} (g)

from carbon and oxygen gas.

Join BYJU'S Learning Program

Enthalpy of combustion of carbon to CO2 is −393.5 kJmol−1. The heat released upon formation of 35.2 g of CO2 from carbon and dioxygen gas is: [Molar mass of CO2=44 gmol−1]

The correct option is C 314.8 kJC(s)+O2(g)⟶CO2(g)44gΔH=−393.5kJmol−1The heat released in the formation of CO244g CO2 requires 393.5 kJ.∴ Heat released in the formation of 35.2 g CO2=393.5kJ×35.2g44g=314.8 kJHence, option C is correct.

Enthalpy of combustion of carbon to ${C O}_{2}$ is $- 393.5 k J {m o l}^{- 1}$ . The heat released upon formation of $35.2 g$ of ${C O}_{2}$ from carbon and dioxygen gas is:

[Molar mass of ${C O}_{2} = 44 g {m o l}^{- 1}$ ]