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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. Hybridisation and the magnetic properties of the complex? Pauling showed that there is a direct correlation between the type of hybridisation and the magnetic properties of
Difference between mesomrism and resonance
When beryllium is bombarded with α -particles, extremely penetrating radiations which cannot be deflected by electrical or magnetic field are given out. These are: (1) A beam
Explain the mechanism of fluid film or hydrodynamic lubrication.
capillarity
Why phenol does not react with sodium carbonate & sodium bicarbonate? Reason: This is because Phenol is less acidic than H 2 CO 3 and hence the reaction doesnt takes place.
names of acid redicals of group 1
Ethylbenzene Ethylbenzene has a three-proton triplet and, at somewhat greater chemical shift, in the benzylic proton region, a two-proton quartet. p-Xylene has a six-proton si
role of ammonium chloride and ammonium hydroxide in group third of basic radical?
Q. How many degrees of freedom has a system consisting of solid NaCl in equilibrium with an aqueous phase containing H 2 O, NaC(aq), Cl (aq), HC(aq), and OH (aq)? Would it be possi
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