Which outcome occurs when a closed steel tank containing liquid ammonia is heated above its critical temperature?

💡 Explanation

When a liquid is heated above its critical temperature, the distinction between liquid and gas phases vanishes because the meniscus disappears due to identical densities, producing a homogenous supercritical fluid. Therefore complete vaporization results, rather than stratification because two-phase equilibrium can not be maintained at supercritical conditions, or dissociation/solidification which require distinctly different conditions.

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