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) 2240 4480 1120 0.4 2240 4480 1120 0.4 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry With rise in pressure, the solubility of gases in solvent, at a fixed temperature Decreases Decreases linearly Remains unchanged Increases Decreases Decreases linearly Remains unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 1 ata is equivalent to 1 atm 10 torr 0.98 Pascal 1 kgf/cm² 1 atm 10 torr 0.98 Pascal 1 kgf/cm² ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry In physical adsorption, as compared to chemisorption, the Quantity adsorbed per unit mass is higher Rate of adsorption is controlled by the resistance to surface reaction Activation energy is very high Heat of adsorption is very large Quantity adsorbed per unit mass is higher Rate of adsorption is controlled by the resistance to surface reaction Activation energy is very high Heat of adsorption is very large ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Real gases approach ideal behaviour at High pressure & low temperature Low pressure & low temperature Low pressure & high temperature High pressure & high temperature High pressure & low temperature Low pressure & low temperature Low pressure & high temperature High pressure & high temperature ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The vapor pressure of liquids (having similar chemical nature) at any specified temperature __________ with increasing molecular weight. Increases Decreases Remains unchanged Increases linearly Increases Decreases Remains unchanged Increases linearly ANSWER DOWNLOAD EXAMIANS APP
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