Answer:
n R ln(Vf/Vi)
Explanation:
Entropy is the loss of energy available to do work. Entropy is a state function (i.e. it depends only upon the current state of the system and is independent of how that state was prepared).
Since the temperature change of the ideal is constant, hence this is an isothermal expansion of a perfect gas. The change in entropy (ΔS) for an isothermal expansion of a perfect gas is given by:
Where n is the amount of gas molecules in mol and R is the gas constant in JK⁻¹mol⁻¹given by R = k, k is Boltzmann's constant in J K⁻¹ and Avogadro's constant in mol⁻¹. Vf is the final volume and Vi the initial volume.
Explanation:
Thermodynamics system :
Thermodynamics system is a region or space in which study of matters can be done.The system is separated from surroundings by a boundary this boundary maybe flexible or fixed it depends on situations.The out side the system is called surroundings.
Generally thermodynamics systems are of three types
1.Closed system(control mass system)
Only energy transfer take place ,no mass transfer take place.
2.Open system(control volume system)
Both mass as well as energy transfer take place.
3.Isolated system
Neither mass or nor energy transfer take place.
At steady state ,property is did not changes with respect to time.
Explanation:
1. Circumference of the handle (where the effort is applied) is pi times diameter.
C = πd
C = 1.5π inches
C ≈ 4.71 inches
2. Mechanical advantage is the ratio of distance in over distance out.
MA = din / dout
MA = 1.5 / 0.25
MA = 6
3. Mechanical advantage is the ratio of force out over force in.
MA = Fout / Fin
6 = Fout / 10 lb
Fout = 60 lb
A is correct because when you go to use core solder the aluminum wires will soldered.
By increasing magnification you decrease the field of view.
The answer is A.
Hope this helps.
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