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Compare and contrast Symmetrical and Cambered wings. What are the reasons for using these different type of wings in an aircraft design?
If the repulsive force between two protons in an atomic nucleus equals 84 N, how far apart are the protons, in picometers (that's trillionths of a meter)?
Each molecule may rotate, and the rotational partition function Z, has the same form as that for translation, except that the volume V is replaced .
Another set of characteristic functions for a single-substance system can be defined by performing the Legendre transformations on the entropy.
What would have been the rise of temperature if the copper had been subjected to a reversible adiabatic compression?
The pressure on 0.2 kg of water is increased reversibly and isothermally from atmospheric pressure to 3 x 108 Pa at 20°C.
Calculate the temperature change when the initial temperature and other variables have the different values given in the three cases .
A relation that holds during an adiabatic process is P(v - b)? = const.
A measure of the result of an adiabatic Joule free expansion is provided by the louie coefficient ? = (?T/?V)U .
The temperature of 1kg of mercury at 200e is increased by 50C under conditions of constant volume. How much heating is required?
A similar measure of the temperature change produced by an isentropic change of pressure is provided by the coefficient µs.
The pressure remains constant while the body comes to equilibrium with the reservoir.
According to Debye's law, the molar heat capacity at constant volume of a diamond varies with the temperature.
Compute the final pressure and temperature and increase of entropy if air is assumed to be the ideal gas.
An adiabatic cylinder, closed at both ends, is fitted with a frictionless adiabatic piston that divides the cylinder into two parts.
A copper block of 0.4 kg mass and with heat capacity at constant pressure of 150J/K at 100°C is placed in a lake at 100°C.
The same capacitor, after being charged to 100 V, is discharged through a resistor kept at 0°C.
Calculate the net entropy change of the gas (not the reservoirs) and obtain the relationship QAB/600K + QCD/300K = 8.64(J/K).
Prove that two isentropic curves do not intersect for systems of two independent variables.
Describe the behavior of the meniscus when the temperature of the system is raised under the conditions.
The specific entropy of saturated water at 1000e is 1.307kl/kg deg and that of saturated steam at the same temperature as 7.355 k.l/kg deg.
If P, v, and T are the pressure, molar volume, and temperature of a gas and Pc, vc, and Tc are the critical pressure, critical molar volume.
What is the specific enthalpy of superheated steam at the same pressure and a temperature of 300°C?
Show that the partial derivatives given in Eqs. (1) and (2) are independent of the equation of state for the hydrostatic system.
A convenient measure of the performance of a refrigerator is expressed by the coefficient of performance w, which is the ratio of the heat .