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The smallest quantity of a substance, which can exist by itself in a chemically recognizable form is known as

A. Element

B. Compound

C. Atom

D. Molecule

Related Questions

  1. In a free expansion process,
  2. According to kinetic theory of gases, the velocity of molecules __________ with the increase in temperature.
  3. Principal planes are planes having
  4. The __________ is obtained when carbonisation of coal is carried out at 500° to 700° C.
  5. The ratio of maximum shear stress developed in a rectangular beam and a circular beam of the same cross-sectional…
  6. A shaft revolving at ω rad/s transmits torque (T) in Nm. The power developed is
  7. For the same compression ratio, the efficiency of Diesel cycle is __________ Otto cycle.
  8. Percentage reduction of area in performing tensile test on cast iron may be of the order of
  9. The value of Poisson's ratio for steel is between
  10. Which of the following is the correct statement of the second law of thermodynamics?
  11. The pressure exerted by an ideal gas is ________ of the kinetic energy of all the molecules contained…
  12. When coal is first dried and then crushed to a fine powder by pulverising machine, the resulting fuel…
  13. The sum of internal energy (U) and the product of pressure and volume (p.v) is known as
  14. The gas in cooling chamber of a closed cycle gas turbine is cooled at
  15. When a gas is heated at constant volume
  16. If the value of n = 0 in the equation pvn = C, then the process is called
  17. If the depth is kept constant for a beam of uniform strength, then its width will vary in proportional…
  18. A hollow shaft of same cross-section area as compared to a solid shaft transmit
  19. The bending equation is
  20. One kg of carbon monoxide requires 4/7 kg of oxygen and produces
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  22. Diesel cycle consists of following four processes
  23. The standard value of atmospheric pressure taken at sea level is
  24. In an extensive property of a thermodynamic system
  25. In closed cycle gas turbine, the air is compressed
  26. A cylindrical section having no joint is known as
  27. The absolute zero temperature is taken as
  28. The pull required to tear off the plate per pitch length is (where p = Pitch of rivets, t = Thickness…
  29. A thin cylindrical shell of diameter (D) and thickness (t) is subjected to an internal pressure (p).…
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