Chemical Engineering Thermodynamics Which of the following is an undesirable characteristics of a refrigerant ? It should be non-explosive It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils None of these Its vapor pressure at the condenser temperature should be very high It should be non-explosive It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils None of these Its vapor pressure at the condenser temperature should be very high ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics After throttling, gas temperature Increases Decreases Remains same May increase or decrease ; depends on the nature of the gas Increases Decreases Remains same May increase or decrease ; depends on the nature of the gas ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Grams of butane (C₄H₁₀) formed by the liquefaction of 448 litres of the gas (measured at (STP) would be 1160 640 Data insufficient; can't be computed 580 1160 640 Data insufficient; can't be computed 580 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics If heat contents of CH₄, C₂H₄ and C₃H₈ are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH₄(g) + C₂H₄(g) ⇋ C₃H₈(g) will be __________ Kcal. -30.2 -19.4 55.2 -55.2 -30.2 -19.4 55.2 -55.2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The difference between isothermal compressibility and adiabatic compressibility for an ideal gas is ∞ -ve +ve ∞ -ve +ve ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The molar excess Gibbs free energy, gE, for a binary liquid mixture at T and P is given by, (gE/RT) = A . x₁. x₂, where A is a constant. The corresponding equation for ln y₁, where y₁ is the activity co-efficient of component 1, is Ax₁² Ax₁ Ax₂ A . x₂² Ax₁² Ax₁ Ax₂ A . x₂² ANSWER DOWNLOAD EXAMIANS APP
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