1m3 is approximately equal to_________________?
1m3 is approximately equal to_________________?
A. 28 litres
B. 35 ft3
C. 4.5 litres
D. 4.5 ft3
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Methane is mixed with stoichiometric proportion of oxygen and completely combusted. The number of additional specifications required to determine the product flow rate and composition is_______________?
Methane is mixed with stoichiometric proportion of oxygen and completely combusted. The number of additional specifications required to determine the product flow rate and composition is_______________?A. 0
B. 1
C. 2
D. 3The evaporation of aqueous solution of sugar causes its molarity to__________________?
The evaporation of aqueous solution of sugar causes its molarity to__________________?A. Decrease
B. Increase
C. Remain unchanged
D. Either A. or B.; depends on the concentration of the solutionOne micron is equal to _____________ cm?
One micron is equal to _____________ cm?A. 10-2
B. 10-4
C. 10-6
D. 10-8An aqueous solution of 2.45% by weight H2SO4 has a specific gravity of 1.011. The composition expressed in normality is______________?
An aqueous solution of 2.45% by weight H2SO4 has a specific gravity of 1.011. The composition expressed in normality is______________?A. 0.2500
B. 0.2528
C. 0.5000
D. 0.5055Thermal diffusivity of a refractory brick is high, when its ______________ is high?
Thermal diffusivity of a refractory brick is high, when its ______________ is high?A. Density
B. Specific heat
C. Thermal conductivity
D. None of theseIn the reaction, Ca + 2H2O = Ca(OH)2 + H2; what volume (c.c.) of hydrogen at STP would be liberated, when 8 gm of calcium reacts with excess water ? (Atomic weight of calcium = 40) ?
In the reaction, Ca + 2H2O = Ca(OH)2 + H2; what volume (c.c.) of hydrogen at STP would be liberated, when 8 gm of calcium reacts with excess water ? (Atomic weight of calcium = 40) ?A. 4480
B. 2240
C. 1120
D. 0.4