Chemical Engineering Thermodynamics 4 kg moles of an ideal gas expands in vacuum spontaneously. The work done is 8 J ∞ Zero 4 J 8 J ∞ Zero 4 J ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The expression for entropy change, ΔS = n Cp . ln (T₂/T₁), is valid for the __________ of a substance. Heating Both B and C Simultaneous pressure & temperature change Cooling Heating Both B and C Simultaneous pressure & temperature change Cooling ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics At normal boiling point, molar entropy of vaporisation is __________ Joule/K°.mole. 142 72 92 192 142 72 92 192 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Thermal efficiency of a Carnot engine can approach 100%, only when the temperature of the Neither A nor B Hot reservoir approaches infinity Either A or B Cold reservoir approaches zero Neither A nor B Hot reservoir approaches infinity Either A or B Cold reservoir approaches zero ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics If the molar heat capacities (Cp or Cv) of the reactants and products of a chemical reaction are identical, then, with the increase in temperature, the heat of reaction will Decrease Increase or decrease ; depends on the particular reaction Increase Remain unaltered Decrease Increase or decrease ; depends on the particular reaction Increase Remain unaltered ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In case of a reversible process (following pvn = constant), work obtained for trebling the volume (v₁ = 1 m³ and v₂ 3 m³ ) is max imum, when the value of 'n' is 1.66 1.44 1 1.66 1.44 1 ANSWER DOWNLOAD EXAMIANS APP
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