Chemical Engineering Thermodynamics The gas law (PV = RT) is true for an __________ change. Isothermal Adiabatic Neither A nor B Both A & B Isothermal Adiabatic Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics 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 Partially condensed vapour with quality of 0.9 Partially condensed vapour with quality of 0.1 Superheated vapour Saturated vapour Partially condensed vapour with quality of 0.9 Partially condensed vapour with quality of 0.1 Superheated vapour Saturated vapour ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics When a gas is subjected to adiabatic expansion, it gets cooled due to Decrease in kinetic energy Decrease in temperature Decrease in velocity Energy spent in doing work Decrease in kinetic energy Decrease in temperature Decrease in velocity Energy spent in doing work ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Boyle's law for gases states that P ∝ V, at constant temperature & mass of the gas P/V = constant, for any gas P ∝ 1/V, when temperature & mass of the gas remain constant P ∝ 1/V, when temperature is constant P ∝ V, at constant temperature & mass of the gas P/V = constant, for any gas P ∝ 1/V, when temperature & mass of the gas remain constant P ∝ 1/V, when temperature is constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following is not a reversible process ? Expansion of an ideal gas against constant pressure Atmospheric pressure vaporisation of water at 100°C None of these Solution of NaCl in water at 50°C Expansion of an ideal gas against constant pressure Atmospheric pressure vaporisation of water at 100°C None of these Solution of NaCl in water at 50°C ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Trouton's ratio is given by (where λb, = molal heat of vaporisation of a substance at its normal boiling point, kcal/kmol Tb = normal boiling point, °K ) √(Tb/λb) Tb/λb √(λb/Tb) λb/Tb √(Tb/λb) Tb/λb √(λb/Tb) λb/Tb ANSWER DOWNLOAD EXAMIANS APP
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