) One kg of gas at 240 °C,expands adiabatically, so that its volume is doubled and th temperature falls to 115 °C . The work done during expansion is 90 KJ.Determine the molecular weight of this gas.

) One kg of gas at 240 °C,expands adiabatically, so that its volume is doubled and th temperature falls to 115 °C . The work done during expansion is 90 KJ.Determine the molecular weight of this gas.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.

Question

) One kg of gas at 240 °C,expands adiabatically , so that its volume is doubled and the
temperature falls to 115 °C. The work done during expansion is 90 KJ.Determine
the molecular weight of this gas.
B) 16 KJ/kg.K
A) 28.67 KJ/kg.K
C) 32 KJ/kg.K
D) 44 KJ/kg.K

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