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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)
Rubber - polymer It is a polymer that is able of returning to its original size, shape or length later than being deformed or stretched. It a kind of elastomer. Rubber is of tw
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Explain the Sensory Evaluation We begin our discussion on sensory evaluation by first understanding what we mean by sensory evaluation. Sensory evaluation is a scientific disc
Properties of Detergents - Oils and Fats Detergents are superior cleansing agents due to following properties. (i) These can be employed both in soft and hard waters as the
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deflection balance
The electrons would go to lower energy levels first and then to higher energy levels according to which of the following: (1) Aufbau principle (2) Pauli's exclusion princip
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