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For a reversible process involving ideal gases in a closed system, show that
ΔS = Cv ln(T2/T1) for a constant volume process
ΔS = Cp ln(T2/T1) for a constant pressure process
ΔS = R ln(V2/V1) = R ln(P1/P2) for an isothermal process
b. Determine the change in entropy when 2 kg of a gas at 277 K is heated in a closed, rigid container to a temperature of 368 K. Take the specific heat at constant volume to be 1.42 KJ/Kg.K
c. Calculate the entropy change when 1 kmol of an ideal gas at 300 K and 10 bar expands to a pressure of 1 bar if the temperature stays constant.
d. What is the change in entropy when 1 kmol of an ideal gas at 335 K and 10 bar is expanded irreversibly to 300 K and 1 bar? C = 29.3 KJ/(kmol K)
The abstraction of a hydrogen atom The H-CN bond is stronger than the O-H bond, the abstraction of a hydrogen atom from HCN by the tert-butoxy radical is endothermic by 528 - 4
For the n= 2 energy level, how many orbitals of all kinds are possible: (1) 2 (2) 3 (3) 4 (4) 5 Ans: 4
'Cohesive energy' : In a chemical bond, it is the energy needed to dissociate a solid into isolated atoms or molecules as appropriate.
Electrons and nuclei The familiar planetary model of the atom was proposed by Rutherford in 1912 following experiments by Geiger and Marsden showing that all the mass of an
Critical Angle: The particular angle of incidence at which angle of refraction becomes 90 is known as critical Angle and it is denoted by θc
hoe to find electronic configuration of elements
If there is a fire accident in an industry, what a safety enginner will do? Ans) Fire engineering is the application of engineering and science principles to protect prope
Question: (a) Explain why metals are mostly ductile and ceramics brittle at room temperature. (b) Describe what you understand by the following terms. Use appropriate il
please give me a complete information about solid and extra information
d 5
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