For an isentropic flow along a nozzle, at location A, the static temperature and pressure were measured to be 320 K and 5 bar. What will be the static pressure at the location where the static temperature is 500 K? (Given η = 1.4)
For the isentropic flow, adiabatic relations can be applied (isentropic means reversible as well as adiabatic).
Then using P_{1} / P_{2} = (T_{1} / T_{2})^{(η / η  1)}
P_{2} = 5 x (500 / 320)^{1.4 / 0.4 }
≅ 23.8 bar.
Average coefficient of volume expansion of a substance is denoted by
A gas having a negative JouleThomson coefficient ( μ_{j} < 0), when throttled, will
The ClausiusClapeyron equation gives the slope of curve on
Consider the following statements pertaining to the Clapeyron equation:
1. It is useful in estimating properties like enthalpy from other measurable properties.
2. At a change of phase, it can be used to find the latent heat at a given pressure.
3. It is derived from the relationship
Which of the statements given above are correct?
What is the unit of Gibbs free energy?
Gibbs free energy is defined as the thermodynamic potential that is used to calculate the maximum amount of reversible work. It takes place at a constant pressure and temperature. The SI unit is Joule.
At chemical equilibrium, Gibbs function is
(dG)_{T,P} = 0 (equilibrium condition)
Which of the following parameter is.the criterion of equilibrium and stability of a system existing at constant volume and constant temperature?
The internal energy of an ideal gas is a function of
For an ideal Gas
U = f(T) only
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