Stoichiometry 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 work equal to loss in kinetic energy Do not exert attractive force on each other Do not lose energy on collision Are above the inversion temperature Do work equal to loss in kinetic energy Do not exert attractive force on each other Do not lose energy on collision ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m³. It cools to 98°C ; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m³. The amount of water vapour condensed (in kg) is 0.1 0.065 1 0.1 0.065 1 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The temperature of a gas in a closed container is 27° C. If the temperature of the gas is incresed to 300° C, then the pressure exerted is Halved Doubled Trebled Unpredictable Halved Doubled Trebled Unpredictable ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The pH value of a solution is 5.9. If the hydrogen ion concentration is decreased hundred times, the solution will be More acidic Of the same acidity Basic Neutral More acidic Of the same acidity Basic Neutral ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The osmotic pressure of a solution is directly proportional to the Absolute temperature of a given concentration All of these Lowering of vapor pressure Molecular concentration of the solute Absolute temperature of a given concentration All of these Lowering of vapor pressure Molecular concentration of the solute ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Air at a temperature of 20°C and 750 mm Hg pressure has a relative humidity of 80%. What is its percentage humidity?Vapour pressure of water at 20°C is 17.5 mm Hg. 78.51 80.38 80 79.62 78.51 80.38 80 79.62 ANSWER DOWNLOAD EXAMIANS APP
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