Free energy change at equilibrium is____________________?
Free energy change at equilibrium is____________________?
A. Zero
B. Positive
C. Negative
D. Indeterminate
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Bulk of the convective heat transfer resistance from a hot tube surface to the fluid flowing in it, is
Question: Bulk of the convective heat transfer resistance from a hot tube surface to the fluid flowing in it, is
[A].in the central core of the fluid. [B].
uniformly distributed throughout the fluid. [C].
mainly confined to a thin film of fluid near the surface. [D].
none of these. Answer: Option C
Explanation:
No answer description available for this question.
Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction.
Question: Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction.
[A].catalytic [B].
endothermic [C].
exothermic [D].
autocatalytic Answer: Option C
Explanation:
No answer description available for this question.
Largest application of laser welding is in __________ welding.
Question: Largest application of laser welding is in __________ welding.
[A].microspot [B].
under water [C].
precious metals [D].
heavy structure Answer: Option A
Explanation:
No answer description available for this question.
An ideal fluid is
Question: An ideal fluid is
[A].viscous & incompressible. [B].
non-viscous & compressible. [C].
non-viscous & incompressible. [D].
viscous & compressible. Answer: Option C
Explanation:
No answer description available for this question.
In the manufacture of orthophosphoric acid by strong H2SO4 leaching wet process, keeping the reactor temperature above 100°C, results in the formation of undesriable
Question: In the manufacture of orthophosphoric acid by strong H2SO4 leaching wet process, keeping the reactor temperature above 100°C, results in the formation of undesriable
[A].CaSO4 .H2O and CaSO4 crystals [B].
pyrophosphoric acid [C].
metaphosphoric acid [D].
all (a), (b) and (c). Answer: Option A
Explanation:
No answer description available for this question.
In troposphere (the weather domain), the temperature ‘t’ at height ‘h’ above the sea level in metres is given by (where, temperature at sea level is 15°C and t is in °C.)
Question: In troposphere (the weather domain), the temperature ‘t’ at height ‘h’ above the sea level in metres is given by (where, temperature at sea level is 15°C and t is in °C.)
[A].t = 15 – 0.0065 h [B].
t = 15 + 0.0065 h [C].
t = 0.0035 h – 15 [D].
t = 15 – 0.0035 h Answer: Option A
Explanation:
No answer description available for this question.