Select the correct option(s): — Thermodynamics and Thermochemistry Chemistry Question

💡 Solution & Explanation

Molar properties are intensive (A correct). For van der Waals gas, W = nRT ln((V2-nb)/(V1-nb)) + n^2 a(1/V2 - 1/V1). When V >> nb, attractive forces reduce work of vdW gas compared to ideal gas (B correct). By definition, a reversible process can be reversed at any stage by an infinitesimal change (C correct). Since W_rev > W_irr in expansion and Δ U = 0 isothermal, q_rev > q_irr — more heat absorbed in reversible expansion (D incorrect).