Related Questions

Catalyst used in ammonia synthesis uses __________ as a promoter.
A Pt
B K2O
C Al2O3
D Ni
Catalytic action in a catalytic chemical reaction follows from the ability of catalyst to change the
A Activation energy
B Equilibrium constant
C Heat of reaction
D None of these
Catalytic ammonia synthesis reaction as in Haber's process is
A Endothermic
B Exothermic
C Irreversible
D None of these
Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.
A Proportional to
B Independent of
C Inversely proportional to
D Proportional to the square of
Iron is not used alone as a catalyst in ammonia synthesis, because
A Its activity declines rapidly, if heated to above 520°C
B It decomposes ammonia
C It gets oxidised above 500°C
D None of these
In __________ converter for ammonia synthesis, the catalyst is arranged in the form of a single continuous bed.
A Fauser-Monte Catini
B Claude
C Udhe
D Kellog
The equilibrium constant of a catalytic chemical reaction __________ due to the presence of a catalyst.
A Increases
B Decreases
C Remains unaffected
D Unpredictable from the data
Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at
A Rourkela (under SAIL)
B Bokaro (under SAIL)
C Sindri (under FCI)
D Baroda (under G.S.F.C.)
Ammonia synthesis reaction is
A Exothermic
B Endothermic
C Autocatalytic
D None of these
Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus)
A Tan hT/T
B Tan T/T
C Tan hT/tan T
D None of these

Next steps