- Cp v
- Cp = Cv
- Cp > Cv
- Cp ≥ Cv
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What is the ratio of adiabatic compressibility to isothermal compressibility?
Answer: Option 2 By T-Ds Equations at constant entropy $$\eqalign{ & {C_p}dT = T\frac{{\partial V}}{{\partial {T_P}}}dP{\text{ and}} \cr & {C_v} = - T{\left( {\frac{{\partial P}}{{\partial T}}} \right)_P}{\left( {\frac{{\partial V}}{{\partial T}}} \right)_S} \cr & \Rightarrow...
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A plait point is the point on the solubility curve, where the tie line reduces to a point. What is the number of plait point for a ternery system containing twopairs of partially miscible liquids?
Answer: Option 1 Let'
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The entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial volume is?
Answer: Option 1 For an isothermal process change in internal energy is equal to zero. So, from first law $$\eqalign{ & q = - w = - 2.303\,RT\,{\text{lo}}{{\text{g}}_{10}}\left( {\frac{{v2}}{{v1}}} \right) \cr & \Rightarrow q...
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A two stage compressor is used to compress an ideal gas. The gas is cooled to the initial temperature after each stage. The intermediate pressure for the minimum total work requirement should be equal to the __________ mean of P₁ and P₂.(where, P₁ and P₂ are initial and final pressures respectively)?
Answer: Option 3 Let'
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On a P-V diagram of an ideal gas, suppose a reversible adiabatic line intersects a reversible isothermal line at point A. Then at a point A, the slope of the reversible adiabatic line (∂P/∂V)S and the slope of the reversible isothermal line (∂P/∂V)T are related as (where, y = Cp/Cv) )?
Answer: Option 3 For an adiabatic process → $$P{V^y}$$ = constant For an isothermal process → $$PV$$ = constant So, slope for adiabatic process in $$PV$$ plane is $$\frac{{dp}}{{dv}} = - y\frac{p}{v}$$ Slope...
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The compressibility factor of a gas is given by (where, V₁ = actual volume of the gas V₂ = gas volume predicted by ideal gas law )?
Answer: Option 1 The compressibility factor is given by $$Z = \frac{{P{V_1}}}{{RT}}.$$ If at the same temperature and pressure if the same gas exists as ideal gas than we...
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Translational kinetic energy of molecules of an ideal gas is proportional to (where, T = absolute temperature of the gas )?
Answer: Option 1 Translational kinetic energy of an ideal gas is given by $$ = \frac{3}{2}KT.$$
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In case of isentropic flow, the speed of sound in an ideal gas is proportional to (where M = molecular weight of the gas)?
Answer: Option 1 Let'
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The relation among various mass transfer co-efficients (M.T.C) for ideal gases is given by (where, Kc & Km are M.T.C. for equimolar counter diffusion with concentration & mole fraction respectively as the driving force. and, Kp = M.T.C. for diffusion of a gas through a stagnant inert gas with pressure as driving force.)?
Answer: Option 3 Let'
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The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called __________ temperature.?
Answer: Option 1 The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called as Boyle temperature.
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