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The value of gas constant 'R' is

A. 1.987 cal/gm mole °K

B. 1.987 BTU/lb. mole °R

C. Both (A) and (B)

D. Neither (A) nor (B)

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. When a gas in a vessel expands, its internal energy decreases. The process involved is
  2. Pick out the correct statement.
  3. At a given temperature, the volume of a gas dissolved in a solvent __________ with increase in pressure.
  4. Isentropic process means a constant __________ process.
  5. Pick out the wrong statement.
  6. Gibbs-Duhem equation relates composition in liquid phase and the __________ at constant temperature…
  7. A liquid under pressure greater than its vapour pressure for the temperature involved is called a __________…
  8. Which of the following is not an intensive property?
  9. Helmholtz free energy (A) is defined as
  10. __________ does not change during phase transformation processes like sublimation, melting & vaporisation.
  11. Throttling (Joule-Thomson effect) process is a constant __________ process.
  12. The variation of heat of reaction with temperature at constant pressure is given by the __________ law.
  13. Pick out the wrong statement.
  14. What happens in a reversible adiabatic expansion process?
  15. Pick out the wrong statement.
  16. Which is not a refrigerant?
  17. In the reaction, represented by, 2SO2 + O2 2SO3; ΔH = - 42 kcal; the forward reaction will be favoured…
  18. Pick out the wrong statement.
  19. Requisites of a reversible process is that the
  20. Heat evolved/absorbed during conversion of a substance from one allotropic form to another is termed…
  21. Variation of equilibrium pressure with temperature for any two phases of a given substances is given…
  22. Which of the following liquid metals has the highest thermal conductivity?
  23. Standard temperature and pressure (S.T.P.) is
  24. The unity of Planck's constant 'h' in the equation, E = hv is
  25. Pick out the wrong statement pertaining to the decomposition of PCl5 represented by, PCl5 PCl3 + Cl2.Degree…
  26. __________ decreases during adiabatic throttling of a perfect gas.
  27. With increase in compression ratio, the efficiency of the otto engine
  28. A change in state involving a decrease in entropy can be spontaneous, only if
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  30. Rotary lime kiln is an example of a/an __________ system.