Chemical Engineering Thermodynamics MCQs
Practice free Chemical Engineering Thermodynamics multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 525 questions — no login required.
Question 469hard
A solid is transformed into vapour without going to the liquid phase at
Question 471hard
Specific __________ does not change during phase change at constant temperature and pressure.
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Question 472hard
Tea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will
Question 474hard
The expression for entropy change, ΔS = nCp.ln$$\left( {\frac{{{{\text{T}}_2}}}{{{{\text{T}}_1}}}} \right),$$ is valid for the __________ of a substance.
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Question 475hard
When a system in equilibrium is subjected to a change in temperature, pressure or concentration, the equilibrium is displaced in a direction which tends to undo the effect of the change. This is called the
Question 476hard
Dryness fraction of wet steam is defined as the ratio of mass of vapour in the mixture to the mass of mixture __________ calorimeter is not used for measuring the dryness fraction of steam.
Question 477hard
Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg.K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg.K, entropy of saturated vapour = 7.2234 kJ/kg.K) The exit condition of steam is