Stoichiometry The net heat evolved or absorbed in a chemical process, i.e. total change in the enthalpy of the system is independent of the None of these Number of intermediate chemical reactions involved Temperature & pressure State of aggregation & the state of combination at the beginning & the end of the reaction None of these Number of intermediate chemical reactions involved Temperature & pressure State of aggregation & the state of combination at the beginning & the end of the reaction ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry One Newton is equal to __________ dynes. 10³ 10⁴ 10⁵ 10² 10³ 10⁴ 10⁵ 10² ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Heat of neutralisation of a strong acid and strong base is always a constant value, i.e., 57 KJ/Kg mole. This is because The salt formed does not hydrolyse Only OH⁻ and H⁺ ions react in every case The strong base and strong acid reacts completely The strong base and strong acid reacts in aqueous solution The salt formed does not hydrolyse Only OH⁻ and H⁺ ions react in every case The strong base and strong acid reacts completely The strong base and strong acid reacts in aqueous solution 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 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 0.5 < Xw < 1.0 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The heats of vaporisation of CS₂, C₂H₅OH &H₂O are 26.8, 38.6 & 40.6 KJ/kg mole respectively. The order of decreasing inter-molecular forces in these liquids is H₂O > C₂H₅OH > CS₂ CS₂ > H₂O > C₂H₅OH H₂O > CS₂ > C₂H₅OH CS₂ > C₂H₅OH > H₂O H₂O > C₂H₅OH > CS₂ CS₂ > H₂O > C₂H₅OH H₂O > CS₂ > C₂H₅OH CS₂ > C₂H₅OH > H₂O ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The chemical nature of an element is independent of None of these The number of neutrons present in it Its atomic number The number of protons or electrons present in it None of these The number of neutrons present in it Its atomic number The number of protons or electrons present in it ANSWER DOWNLOAD EXAMIANS APP
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