If enthalpy of an overall reaction X → Y along one route is Δ r H and Δ r H 1 , Δ r H 2 …
Chemistry · Class 11 · CBSE — Thermodynamics
If enthalpy of an overall reaction X → Y along one route is ΔrH and ΔrH1, ΔrH2, ΔrH3 ……… representing enthalpies of reactions leading to same product Y then ΔrH is
- DrH = DrH1 + DrH2 + DrH3 ………
- DrH = DrH1 × DrH2 × DrH3 ………
- DrH = DrH1 + DrH2 – DrH3 ………
- \(\Delta_{r} H=\frac{\Delta_{r} H_{1} \times \Delta_{r} H_{2} \times \Delta_{r} H_{3}}{2}\) ………
Answer
(A) D r H = D r H 1 + D r H 2 + D r H 3 ………
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- 50 mL of 1 M NaOH is mixed with 50 mL of 1 M HCl and rise in temperature T 1 is noted. In second experiment…
- For the reaction : H 2( g ) + Cl 2( g ) → 2HCl; D H = – 44 kcal What is the enthalpy of decomposition of HCl?
- The total entropy change (Δ S total ) for the system and surrounding of a spontaneous process is given by
- Bond dissociation energies of H 2 , Cl 2 and HCl ( g) are 104, 58 and 103 kcal mol –1 respectively. Calculate…
- Match the following columns and mark the appropriate choice. Column I Column II (A) Exothermic (i) Δ H = 0, Δ…
- Which of the following processes is a non-spontaneous process?
- What will be the work done when one mole of a gas expands isothermally from 15 L to 50 L against a constant…
- According to the first law of thermodynamics, Δ U = q + W. In special cases the statement can be expressed in…
More Thermodynamics questions · Browse all practice questions