Stoichiometry 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) 1120 4480 2240 0.4 1120 4480 2240 0.4 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The weight fraction of methanol in an aqueous solution is 0.64. The mole fraction of methanol XM satisfies XM < 0.5 0.5 < XM < 0.64 XM = 0.5 XM ≥ 0.64 XM < 0.5 0.5 < XM < 0.64 XM = 0.5 XM ≥ 0.64 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The heat of vaporisation __________ with increase in pressure. Becomes zero at critical pressure Decreases Both B and C Increases Becomes zero at critical pressure Decreases Both B and C Increases ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry One 'Therm' is equivalent to 10⁵ BTU 10⁹ BTU 10⁹ kcal 10⁵ kcal 10⁵ BTU 10⁹ BTU 10⁹ kcal 10⁵ kcal ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Othmer chart is useful in estimating the heat of Wetting Mixing None of these Adsorption Wetting Mixing None of these Adsorption ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Size range of the colloidals particles is 10 - 50 Angstrom 50 - 200 microns 500 - 1000 microns 5 - 200 milli-microns 10 - 50 Angstrom 50 - 200 microns 500 - 1000 microns 5 - 200 milli-microns ANSWER DOWNLOAD EXAMIANS APP
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