Related Questions

Absorption accompanied by heat evolution results in
A Increased capacity of the absorber
B Increase in equilibrium solubility
C Decrease in equilibrium solubility
D None of these
Absorption/evolution of heat during conversion of a substance from one allotropic form to another is termed as the heat of
A Sublimation
B Fusion
C Transition
D Vaporisation
How are the efficiencies of any heat engine (miu) and reversible heat engine (miuR) compared, when both are operating between same heat source and same heat sink?
A miu = miuR
B miu>miuR
C miu
D none of these
The evolution of heat of solution takes place in ammonia absorption plant when
A Ammonia vapour goes into solution
B Ammonia vapour is driven out of solution
C Lithium bromide mixes with ammonia
D Weak solution mixes with strong solution
Relationship between absorption/evolution of heat at the thermocouple junctions and the current flow in the circuit is given by __________ effect.
A Peltier
B Thomson
C Seebeck
D None of these
Isothermal turbulent flow of a fluid results in decrease of its pressure, which depends on the
A Wall roughness
B Reynolds number
C Both A and B
D Neither A nor B
The work done in isothermal compression compared to that in adiabatic compression will be
A Less
B More
C Same
D More or less depending upon the extent of work done
The average of 17 results is 60. If the average of first 9 results is 57 and that of the last 9 results is 65, then what will be the value of 9th result?
A 39
B 78
C 117
D 156
A concentric double pipe heat exchanger as compared to the shell and tube heat exchanger for the same heat load requires
A Less heating surface
B More space
C Lower maintenance cost
D None of these
The scales form in heat exchanges after a period of operation and provide additional resistance to heat transfer with some heat transfer coefficient . The reciprocal of this scale heat transfer coefficient is called .
A scaling factor
B forming factor
C resisting factor
D fouling factor

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