The gap between ∆H and ∆U is usually negligible for a reaction involving:
AOnly solids and liquids
BGases with mole change
CCombustion of a gas
DGas-phase dissociation
Answer & Solution
Correct answer: A. Only solids and liquids
Solids and liquids barely change volume, so the p∆V term separating ∆H from ∆U is tiny.
Related questions
Stirring a liquid in contact with a reservoir cannot be exactly reversed because that woulIn the Carnot cycle, the heat absorbed during isothermal expansion equals which quantity?In the isothermal compression of a Carnot cycle, heat is?A Carnot cycle is made of which combination of steps?An engine absorbs 600 J per cycle and has an efficiency of 0.25. How much work does it do A Carnot engine works between 500 K and 300 K. What fraction of the absorbed heat becomes A Carnot engine takes heat from a 800 K source and rejects it at 400 K. What is its efficiIrreversibility comes from non-equilibrium states and which other cause?