STOICHIOMETRY QUIZ

Heat of reaction is a function of the

Pressure

Temperature

Both(a)&(b)

Neither (a) nor (b)

TRUE ANSWER : ?
YOUR ANSWER : ?

Unrestrained expansion of an ideal gas does not result in its cooling due to the reason that the gas molecules

Are above the inversion temperature

Do not exert attractive force on each other

Do not lose energy on collision

Do work equal to loss in kinetic energy

TRUE ANSWER : ?
YOUR ANSWER : ?

Pick out the wrong conversion formula for the conversion of weight units :

1 tonne = 1000 kg = 22.046 lbs

1 U.S. ton = 907 kg = 0.907 tonne = 0.893 ton

None of these

1 ton = 2240 lbs = 1016 kg = 1.016 tonnes = 1.12 U.S. tons

TRUE ANSWER : ?
YOUR ANSWER : ?

Variation of vapor pressure with temperature can be calculated using Clausius-Clapeyron equation, which assumes that the

All of these

Molal latent heat of vaporisation is constant within the limited temperature range

Vapor follows the ideal gas law

Volume in the liquid state is negligible compared with that in the vapor state

TRUE ANSWER : ?
YOUR ANSWER : ?

Enthalpy of a vapor gas mixture may be increased by increasing the

Humidity at constant temperature

All of these

Temperature and the humidity

Temperature at constant humidity

TRUE ANSWER : ?
YOUR ANSWER : ?

A chemical process is said to occur under unsteady state, if the

Flow rates & composition both are time dependent

Inventory changes do not take place

Ratio of streams entering/leaving are independent of time

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Isotonic solutions must have the same

Critical temperature

Normality

Molar concentration

Viscosity

TRUE ANSWER : ?
YOUR ANSWER : ?

In case of an unsaturated vapor-gas mixture, the humid volume increases with increase in the

Total pressure

Absolute humidity at a given temperature

Both A & B

Neither A nor B

TRUE ANSWER : ?
YOUR ANSWER : ?

The equilibrium value of the mole fraction of the gas dissolved in a liquid is directly proportional to the partial pressure of that gas above the liquid surface. This statement pertaining to the solubility of gases in liquid is the __________ law.

Henry's

None of these

Raoult's

Amgat's

TRUE ANSWER : ?
YOUR ANSWER : ?

If pH value of an acidic solution is decreased from 5 to 2, then the increase in its hydrogen ion concentration is __________ times.

1000

10

100

10000

TRUE ANSWER : ?
YOUR ANSWER : ?