Stoichiometry No cooling occurs, when an ideal gas undergoes unrestrained expansion, because the molecules Are above the inversion temperature Exert no attractive force on each other Collide without loss of energy Do work equal to loss in kinetic energy Are above the inversion temperature Exert no attractive force on each other Collide without loss of energy Do work equal to loss in kinetic energy ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The atomic heat capacities of all solid elements __________ with decrease in temperature. Approach zero at 0°C Remains unchanged Decreases Increases Approach zero at 0°C Remains unchanged Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A very dilute solution is prepared by dissolving 'x1' mole of solute in 'x2' mole of a solvent. The mole fraction of solute is approximately equal to 1 - (x1/x2) X2/x1 1/x2 X1/x2 1 - (x1/x2) X2/x1 1/x2 X1/x2 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The most convenient way of expressing solution concentration is in terms of Molality Molarity Normality Mole fraction Molality Molarity Normality Mole fraction ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Pure oxygen is mixed with air to produce an enriched air containing 50 volume % of oxygen. The ratio of moles of air to oxygen used is 0.2 1.72 0.5 0.58 0.2 1.72 0.5 0.58 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Variation of vapor pressure with temperature can be calculated using Clausius-Clapeyron equation, which assumes that the Molal latent heat of vaporisation is constant within the limited temperature range Volume in the liquid state is negligible compared with that in the vapor state Vapor follows the ideal gas law All of these Molal latent heat of vaporisation is constant within the limited temperature range Volume in the liquid state is negligible compared with that in the vapor state Vapor follows the ideal gas law All of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS