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

Enthalpy of Combustion

The heat of c...

Question

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

+315 kJ

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

-630 kJ

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

-3.15 kJ

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

-315 kJ

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

Open in App

Solution

The correct option is A +315 kJ
$C_{(s)} + O_{2 (g)} \to C O_{2 (g)}, Δ H = - 393.5 k J / m o l$
$\Rightarrow$ Amount of heat released in formation of $44 g C O_{2} = 393.5 k J$
$∴$ Amount of heat released on formation of $35.2 g C O_{2} = \frac{393.5}{44} \times 35.2 = 314.8 \approx 315 k J$

Suggest Corrections

Similar questions

C O_{2}

C O_{2}

C O_{2}

m o l^{- 1}

C O_{2}

C O_{2}

C O_{2}

- 393.5 kJ/mol.

35.2 g

C O_{2}

{C O}_{2}

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

35.2 g

{C O}_{2}

{C O}_{2} = 44 g {m o l}^{- 1}

Join BYJU'S Learning Program