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Which of the following equations is used for the prediction of activity co-efficient from experiments?

LohaHridoy
  1. Van Laar equation
  2. Margules equation
  3. Wilson's equation
  4. All of the above

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AhmedNazir

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Answer: Option 4

All the given three equations are models to find activity co-efficient.

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The prediction of storm is made, when atmospheric pressure?

Answer: Option 3 The prediction of storm is made, when atmospheric pressure decreases suddenly. The barometer drops suddenly depicting low pressure zone & unsettled weather system developing such as storm.

1 Answers 1 views
What-if technique, which examines changes in results if original prediction would not be achieved is called?

Answer: Option 3 Technique that examines changes in results if original prediction would not be achieved is called sensitivity analysis. A sensitivity analysis determines how different values of an independent...

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A reasonably general expression for vapour-liquid phase equilibrium at low to moderate pressure is Φi yi P = Yi xi fi° where, Φ is a vapor fugacity component, Yi is the liquid activity co-efficient and fi° is the fugacity of the pure component i. the Ki value (Yi = Ki xi) is therefore, in general a function of?

Answer: Option 3 Let'

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Co-efficient of discharge (Cd) is defined as actual discharge/theoretical discharge and is equal to Cc . Cv; where Cc = Co-efficient of contraction and Cv = co-efficient of velocity. Cd of an orifice is usually about?

Answer: Option 2 Let'

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Which of the following experiments analyzed the Fraunhofer lines of the solar spectrum?

Answer: Option 4 Bunsen and Kirchhoff's experiment analyzed the Fraunhofer lines of the solar spectrum.

1 Answers 2 views
The artificial activity, which indicates that an activity following it cannot be started unless, the preceding activity is complete, is known as?

Answer: Option 4 The artificial activity, which indicates that an activity following it cannot be started unless, the preceding activity is complete, is known as Dummy

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The artificial activity which indicates that an activity following it, cannot be started unless the preceding activity is complete, is known as?

Answer: Option 3 Let'

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Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion?

Answer: Option 2 Let'

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The activity co-efficient of a solution, which accounts for the departure of liquid phase from ideal solution behaviour?

Answer: Option 3 Let'

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Which of the following file organizations is most efficient for a file with a high degree of file activity?

Answer: Option 1 The sequential file organization is efficient and process faster for the large volume of data. It is a simple file organization compared to other available file organization...

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