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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)
Q Explain Working of Galvanic Cell? Ans. There are several types of electrochemical cells. One type of electrochemical cell is called a galvanic cell . (A battery is a galvan
two containers are connected by a stopcock. gas A is at pressure 202kpa while gas B is at pressure 140kpa, what will be the resultant pressure when the stopcock is opened
(a) Using Lewis structures to describe your reasoning, describe why the following ions have different bond angles: ClO2 - and NO2 - (b) Given that the spatial arrangement of a
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2Zns + 3O 2 ---------> 2ZnO + 2SO 2 ZnCO 3 -------------> ZnO + CO 2 ZnO +C ------> Zn +CO ZnO + CO -----------> Zn + C0 2
The frequency of a wave of light is 12x 10 14 s -1 . The wave number associated with this light is: (1) 5x10 -7 m (2) 4x 10 -8 cm -1
Mechanism of reduction (b)
Q. Illustrate phase diagram? Ans. There are two things which influence phase change: 1. The pressure exerted on the surface of a substance. 2. The addition or rele
The orbital angular momentum of an electron in 2s -orbital is: (1) 1/2 h/ 2Π (2) h/ 2Π (3) √2 h/ 2 Π (4) Zero Ans
i need equivalent weight aluminum alloy 2024
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