Question

Quiz 111 ME272 Thermodynamics II Second (Spring Semester) 2019-2020 April 2020 Choose the correct option: 1- The compressibility factors Z are determined assuming that component i exists at the temperature T and pressure p of the mixture, when we specify the mass of component in the mixture. This is according to a) Additive pressure rule b) Kay's rule c) Additive volume rule d) None of the above 2. The ideal gas mixture of combustion gases exhaust from the engine is measured by Orsat Apparatus, it is based on a) Molar analysis b) Gravimetric analysis c) Volumetric analysis d) None of the above 3- The law which hold approximately for real gas mixtures is a) Dalton's law b) Gibb's Daltons Law c) Kay's Law d) None of the above 4. When the moist air passes through the duct at constant pressure without adding or removing any moisture then a) The humidity ratio and partial pressure of dry air and water vapor will remain same b) The relative humidity and specific enthalpy will remain same c) Wet bulb temperature and specific enthalpy will remain same d) None of the above 1. The compressibility factor gives more accurate results when it is evaluated after applying a) Amagat's law b) Dalton's law c) Gibb's-Dalton's law d) None of the above 2- The evaporative cooling process follows a line of constant temperature on psychrometric chart and this temperature is named as Saturated vapor a) Dry bulb temperature b) Wet bulb temperature c) Dew point temperature d) None of the above

Answer 1

Q.1 Answer > 1. c) rule. Additive volume - Amwer as e) Volumetic analysis, Orsat apparatus uses volumetic analysis for flere gases. 03 Anwen e> Kay's Law. Other two laws one for ideal or perfect geses. 014 Anwen » es Hurriclity Ratio & partial pressure of dry au & water vapour will remain same I Amwen > Gibbs Dalton Law . I Answer > by Wet bulb temperature