A.20?C and 10?C
B.10?C and 20?C
C.15?C and 15?C
D.cannot be predicated
A.when a fuel is burned in air
B.when a fuel is burned in oxygen
C.when a fuel is burned in air or oxygen
D.when a fuel is burned in air or oxygen without gain or loss of heat
A.The reaction rate constant at one temperature is sufficient
B.The reaction rate constants at two or more different temperatures must be known
C.The reaction rate constants at three different temperatures must be known
D.The reaction rate constants at two different temperatures and k0 must be known.
A.indicates the rate of change of viscosity with temperature
B.indicates the viscosity of 100?F
C.indicates the rate of change of viscosity with pressure
D.indicates the rate of change of specific gravity with pressure
A.endothermic
B.exothermic
C.catalytic
D.reversible
A.sulphuric acid is formed in solution
B.phosphorous
C.arsenic
D.coke
A.air
B.refrigerant
C.condenser water
D.None of the above
A.Bodies black in colour are known as black bodies
B.Only some substances emit radiation
C.Quality and quantity of radiation depends on the properties of the material only
D.A substance will emit radiation at a particular wavelength only
E.All substances emit radiation the quality and quantity depends on the absolute temperature and the properties of the material composing the radiating body
A.NPr/NSc
B.NPr NSc
C.NSc/NPr
D.Cs (NSc/NPr)
