Chemical Engineering Thermodynamics The accentric factor of a materical, 'ω', is defined as ω = -log10(Prsat)Tr⁻¹ = 0.7, where, Prsat = reduced vapor pressure, Tr = reduced temperature. The value of accentric factor is always < 1 < 3 > 2 > 1 < 1 < 3 > 2 > 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in No change in the value of COP Enhanced COP Decreased COP Increased or decreased COP ; depending upon the type of refrigerant No change in the value of COP Enhanced COP Decreased COP Increased or decreased COP ; depending upon the type of refrigerant 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 Increase or decrease ; depends on the particular reaction Remain unaltered Increase Decrease Increase or decrease ; depends on the particular reaction Remain unaltered Increase Decrease ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Law of corresponding states says that No gas can be liquified above the critical temperature, howsoever high the pressure may be The surface of separation (i. e. the meniscus) between liquid and vapour phase disappears at the critical temperature The molar heat of energy of gas at constant volume should be nearly constant (about 3 calories) , two different gases behave similarly, if their reduced properties (i.e. P, V and T) are same No gas can be liquified above the critical temperature, howsoever high the pressure may be The surface of separation (i. e. the meniscus) between liquid and vapour phase disappears at the critical temperature The molar heat of energy of gas at constant volume should be nearly constant (about 3 calories) , two different gases behave similarly, if their reduced properties (i.e. P, V and T) are same ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics y = specific heat ratio of an ideal gas is equal to All of these 1 + (R/CV) Cp/(CP-R) Cp/Cv All of these 1 + (R/CV) Cp/(CP-R) Cp/Cv ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A cylinder contains 640 gm of liquid oxygen. The volume occupied (in litres) by the oxygen, when it is released and brought to standard conditions (0°C, 760 mm Hg) will be __________ litres. 224 448 Data insufficient; can't be computed 22.4 224 448 Data insufficient; can't be computed 22.4 ANSWER DOWNLOAD EXAMIANS APP
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