By operating a reversible heat engine with an ideal gas as the working substance in a Carnot cycle and measuring the ratio Qc /Qh, we can calculate
a. n, the number of moles of the ideal gas.
b. the ratio Vc /Vh of the volumes of the ideal gas.
c. the ratio Pc /Ph of the pressures of the ideal gas.
d. the ratio PcVc /PhVh of the products of volumes and pressures of the ideal gas.
e. the value of Avogadro's number.
d
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Vision Problems: Farsightedness can usually be corrected with
A. converging lenses. B. diverging lenses. C. convex mirrors. D. cylindrical lenses. E. concave mirrors.
What causes the geological activity seen on some of the inner moons of Jupiter?
a. Constant collisions with space debris provide a power source for geological activity. b. The strong magnetic field of Jupiter heats the surface of the inner moons. c. Tidal friction as a result of being so close Jupiter heats their interiors. d. Solar radiation reflected of Jupiter's surface provides a power source for geological activity.
Consider a point on a bicycle wheel as the wheel turns about a fixed axis, neither speeding up nor slowing down. Compare the linear and angular velocities of the point
a. Both are constant. b. Only the angular velocity is constant. c. Only the linear velocity is constant. d. Neither is constant.
Why are the moons and rings of Uranus and Neptune believed to be dark?
What will be an ideal response?