What is the value of entropy at 273°K?

A. 0

B. 1


D. None of these


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  1. At the point of boundary layer separation in fluid flow, the
  2. Fine grained steels have
  3. The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong
  4. Fire in fuel gas pipelines is extinguished most effectively by
  5. Cold chisel & hammers are made of
  6. __________ is used as a material of construction for the blade of power saw.
  7. __________ of austenite decreases the hardenability in steel.
  8. Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which __________ with increase in the…
  9. Titanium is produced by __________ of Ti Cl4.
  10. Use of water as a manometric liquid suffers from the disadvantage of its
  11. Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well.…
  12. __________ test can be termed as the semidestructive test.
  13. Solute atoms which cause yield point phenomenon in mild steel are/is
  14. The underground well of a biogas plant is called the
  15. Fog is an example of colloidal system of
  16. In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb…
  17. Chromium molybdenum steel cannot be welded using __________ welding.
  19. Sub zero treatment of steel is done to
  20. Age hardening is connected with
  21. Two solutions A1 & A2 have pH value of 2 & 6 respectively. It implies that the solution
  22. Thermit welding uses the following energy source.
  23. Force between the molecules of the same substance is called __________ force.
  24. Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat…
  25. Which of the following has the highest value of refractive index?
  26. Flue gases pass through the following boiler accessories in a high pressure natural circulation boiler.A.…
  28. Which of the following mainly decides the current to be employed is arc welding?
  29. Gross national product (GNP) means the total value of __________ in a country.
  30. Which of the following is preferred for riveting?