What does Hess's law state about enthalpy change?
AIt depends on the number of steps
BIt is the same by any route
CIt is zero for every cycle step
DIt varies with the route
Answer & Solution
Correct answer: B. It is the same by any route
Enthalpy is a state function, so the overall change is the same by any route from reactants to products.
Keep practising Thermodynamics
Browse all Thermodynamics questions for CBSE Class 11 (Science), or explore more Chemistry topics.
Related questions
What does the first law say about the direction of heat flow?Strongly exothermic reactions generally have an equilibrium constant that is what?What is the Gibbs energy of a system at chemical equilibrium?A reaction has ΔH = -80 kJ and ΔS = -100 J/K at 300 K. What is ΔG?For 2Cl(g) → Cl2(g), what are the signs of ΔH and ΔS?A reaction has ΔH positive and ΔS positive. When is it spontaneous?In ΔG = ΔH - TΔS, what does TΔS represent?What is another name for the Gibbs energy of a reaction?