The standard enthalpy of formation [ H_ f ^ a ] at 298 K for methane, CH 4 (g), is -74.8…
Chemistry · NEET · NTA Exams — Chemical Thermodynamics
The standard enthalpy of formation \(\left[\Delta H_{f}^{a}\right]\) at 298 K for methane, CH4(g), is -74.8 kJ mol-1. The additional information required to determine the average energy for C-H bond formation would be:
- the dissociation energy of H2 and enthalpy of sublimation of carbon
- latent heat of vaporization of methane
- the first four ionization energies of carbon and electron gain enthalpy of hydrogen
- the dissociation energy of hydrogen molecule, H2
Answer
(A) the dissociation energy of H 2 and enthalpy of sublimation of carbon
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- For the equilibrium, ZH _ 2 O H _ 3 O ^ + + OH ^ - , the value of G° at 298 K is approximately:
- Which amongst the following options is the correct relation between change in enthalpy and change in internal…
- Given below are two statements Statement I : Air quickly leaking out of a balloon becomes cooler. Statement…
- For melting of 3 moles of water at 0 ° C, the ∆G is:
- For the hypothetical reversible reaction: 1 2 A 2 (g) + 3 2 B 2 (g) → AB 3 (g), the value of ΔH is -20 kJ mol…
- 4.0 g of a gas occupies 22.4 litres at STP. The specific heat capacity of the gas at constant volume is 5.0…
- For an adiabatic process which of the following relation is correct:
- A well stoppered thermos flask contains some ice cubes. This is an example of:
More Chemical Thermodynamics questions · Browse all practice questions