Stoichiometry During a phase change process like sublimation, vaporisation, melting etc., the specific __________ does not change. Gibbs free energy Enthalpy Internal energy Entropy Gibbs free energy Enthalpy Internal energy Entropy ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A fluid gas produced on burning furnace oil contains 0.15 gm mole of CO₂, 0.05 gm mole of oxygen and 0.80 gm mole of N₂. What is its molecular weight? 32.6 30.6 28.6 30 32.6 30.6 28.6 30 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry With rise in temperature, the heat capacity of a substance Remains unchanged Either A or B; depends on the substance Increases Decreases Remains unchanged Either A or B; depends on the substance Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At what temperature, given mass of a gas that occupies a volume of 2 litres at N.T.P. will occupy a volume of 4 litres, if the pressure of the gas is kept constant? 273°K 200°C 273°C 100°C 273°K 200°C 273°C 100°C ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The boiling points for pure water and pure toluene are 100°C and 110.6°C respectively. Toluene and water are completely immiscible in each other. A well agitated equimolar mixture of toluene and water are prepared. If, at a total pressure of one standard atm. exerted by the vapours of water and toluene, the mole fraction of water Xw in the vapour phase satisfies 0.5 < Xw < 1.0 Xw = 1.0 0 < Xw < 0.5 Xw = 0.5 0.5 < Xw < 1.0 Xw = 1.0 0 < Xw < 0.5 Xw = 0.5 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry If a solution of eutectic composition is cooled, __________ reaching the eutectic temperature. The solvent begins to freeze out even before It will not solidify even on None of these It will undergo no change until The solvent begins to freeze out even before It will not solidify even on None of these It will undergo no change until ANSWER DOWNLOAD EXAMIANS APP
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