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Stoichiometry

Equal masses of CH4 and H2 are mixed in an empty container. The partial pressure of hydrogen in this container expressed as the fraction of total pressure is___________________?

Stoichiometry /
Equal masses of CH4 and H2 are mixed in an empty container. The partial pressure of hydrogen in this container expressed as the fraction of total pressure is___________________?

A. 1/9
B. 8/9
C. 1/2
D. 5/9

Equal masses of CH4 and H2 are mixed in an empty container. The partial pressure of hydrogen in this container expressed as the fraction of total pressure is___________________? Read More »

Stoichiometry

No cooling occurs, when an ideal gas undergoes unrestrained expansion, because the molecules____________________?

Stoichiometry /
No cooling occurs, when an ideal gas undergoes unrestrained expansion, because the molecules____________________?

A. Collide without loss of energy
B. Do work equal to loss in kinetic energy
C. Are above the inversion temperature
D. Exert no attractive force on each other

No cooling occurs, when an ideal gas undergoes unrestrained expansion, because the molecules____________________? Read More »

Stoichiometry

The ratio of existing moles of vapor per mole of vapor free gas to the moles of vapor that would be present per mole of vapor free gas, if the mixture were saturated at the existing temperature & pressure, is termed as the_____________________?

Stoichiometry /
The ratio of existing moles of vapor per mole of vapor free gas to the moles of vapor that would be present per mole of vapor free gas, if the mixture were saturated at the existing temperature & pressure, is termed as the_____________________?

A. Relative humidity
B. Relative saturation
C. Percentage saturation
D. None of these

The ratio of existing moles of vapor per mole of vapor free gas to the moles of vapor that would be present per mole of vapor free gas, if the mixture were saturated at the existing temperature & pressure, is termed as the_____________________? Read More »

Stoichiometry

The percentage ratio of the partial pressure of the vapor to the vapor pressure of the liquid at the existing temperature is_____________________?

Stoichiometry /
The percentage ratio of the partial pressure of the vapor to the vapor pressure of the liquid at the existing temperature is_____________________?

A. Termed as relative saturation
B. Not a function of the composition of gas mixture
C. Called percentage saturation
D. Not a function of the nature of vapor

The percentage ratio of the partial pressure of the vapor to the vapor pressure of the liquid at the existing temperature is_____________________? Read More »

Stoichiometry

At room temperature, the product [H+] [OH-] in a solution is 10-14 moles/litre. If, [OH-] = 10-6 moles/litre, then the pH of the solution will be ________________________?

Stoichiometry /
At room temperature, the product [H+] [OH-] in a solution is 10-14 moles/litre. If, [OH-] = 10-6 moles/litre, then the pH of the solution will be ________________________?

A. 6
B. 8
C. 10
D. 12

At room temperature, the product [H+] [OH-] in a solution is 10-14 moles/litre. If, [OH-] = 10-6 moles/litre, then the pH of the solution will be ________________________? Read More »

Stoichiometry

For most salts, the solubility increases with rise in temperature, but the solubility of _______________ is nearly independent of temperature rise?

Stoichiometry /
For most salts, the solubility increases with rise in temperature, but the solubility of _______________ is nearly independent of temperature rise?

A. Sodium chloride
B. Sodium carbonate monohydrate
C. Anhydrous sodium sulphate
D. Hypo

For most salts, the solubility increases with rise in temperature, but the solubility of _______________ is nearly independent of temperature rise? Read More »

Stoichiometry