Stoichiometry Unrestrained expansion of an ideal gas does not result in its cooling due to the reason that the gas molecules 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 Are above the inversion temperature Do work equal to loss in kinetic energy ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At higher temperatures, molal heat capacities for most of the gases (at constant pressure) __________ with increase in temperature. Does not vary Varies linearly Increases Decreases Does not vary Varies linearly Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The pressure of 'V' litres of a dry gas is increased from 1 to 2 kgf/cm² at a constant temperature. The new volume will become 2V V² V/2 V/4 2V V² V/2 V/4 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The heat capacity of a substance is Equal for solid and liquid states below melting point Lower for liquid state than for gaseous state Greater for liquid state than for solid state Higher for solid state than for liquid state Equal for solid and liquid states below melting point Lower for liquid state than for gaseous state Greater for liquid state than for solid state Higher for solid state than for liquid state ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The vapour pressure of water is given by, in Psat = A - (5000/T), where A is a constant, Psat is the vapour pressure in atm. and T is the temperature in K.The vapor pressure of water in atm. at 50°C is approximately 0.11 0.13 0.07 0.09 0.11 0.13 0.07 0.09 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg.? 0.2 0.4 0.6 0.1 0.2 0.4 0.6 0.1 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS