It is not possible to increase the efficiency of thermal power plants because of thermodynamics
What will be an ideal response?
There is certainly a limit imposed by thermodynamics, but actual efficiencies are
still considerably below the theoretical thermodynamic limit, so there is room for
improvement.
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A lens has a refractive power of -1.50. What is its focal length?
A. 150 cm B. -150 cm C. 67.0 cm D. -67.0 cm E. 8.50 cm
Radioactive Decay: The decay constant of a radioactive nuclide is 3.1 × 10-3 s-1. At a given instant, the activity of a specimen of the nuclide is 70 kBq. How much later has the activity declined to 10 kBq?
A. 630 s B. 690 s C. 750 s D. 820 s E. 880 s
A mole of diatomic oxygen molecules and a mole of diatomic nitrogen molecules are at STP. Which statements are true about these molecules? (There could be more than one correct choice.)
A) Both gases have the same average molecular speeds. B) Both gases have the same number of molecules. C) Both gases have the same average kinetic energy per molecule. D) Both gases have the same average momentum per molecule.
Because Jupiter's four large moons were discovered by Galileo, they are called ______________ moons
Fill in the blank(s) with correct word