Which of the following reactions is not exothermic?

  • A
    $C_{(s)} + O_{2(g)} \to CO_{2(g)}$
  • B
    $C_{(s)} + 2S_{(s)} \to CS_{2(g)}$
  • C
    $CH_{4(g)} + 2O_{2(g)} \to CO_{2(g)} + 2H_2O_{(l)}$
  • D
    $CO_{(g)} + \frac{1}{2}O_{2(g)} \to CO_{2(g)}$

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Similar Questions

The enthalpy changes for the following processes are listed below:
$Cl_{2(g)} \rightarrow 2Cl_{(g)}$$242.3 \ kJ \ mol^{-1}$
$I_{2(g)} \rightarrow 2I_{(g)}$$151.0 \ kJ \ mol^{-1}$
$ICl_{(g)} \rightarrow I_{(g)} + Cl_{(g)}$$211.3 \ kJ \ mol^{-1}$
$I_{2(s)} \rightarrow I_{2(g)}$$62.76 \ kJ \ mol^{-1}$

Given that the standard states for iodine and chlorine are $I_{2(s)}$ and $Cl_{2(g)}$,the standard enthalpy of formation for $ICl_{(g)}$ is : ............... $kJ \ mol^{-1}$

Average $C-H$ bond energy is $416 \ kJ \ mol^{-1}$. Which of the following is correct?

For which of the following reactions does the heat of reaction represent the bond energy of $HCl$?

Identify the molecule for which the enthalpy of atomization $\left(\Delta_{a} H^{\ominus}\right)$ and bond dissociation enthalpy $\left(\Delta_{BOND} H^{\ominus}\right)$ are not equal.

The energy required to break one mole of $Cl-Cl$ bonds in $Cl_2$ is $242 \, kJ \, mol^{-1}.$ The longest wavelength of light capable of breaking a single $Cl-Cl$ bond is $............ \, nm.$
$(c = 3 \times 10^8 \, m \, s^{-1}$ and $N_A = 6.02 \times 10^{23} \, mol^{-1}).$

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