Stoichiometry 80 kg of Na₂SO₄ (molecular weight = 142) is present in 330 kg of an aqueous solution. The solution is cooled such that. 80 kg of Na₂SO₄ .10H₂O crystals separate out. The weight fraction of Na₂SO₄ in the remaining solution is 1 0.24 0.18 1 0.24 0.18 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Heat of reaction is not influenced by The route/method through which final products are obtained Whether the reaction is carried out at constant temperature or constant pressure None of these The physical state (e.g., solid, liquid or gaseous) of reactants and products The route/method through which final products are obtained Whether the reaction is carried out at constant temperature or constant pressure None of these The physical state (e.g., solid, liquid or gaseous) of reactants and products ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Mass number of an atom is the sum of the numbers of Neutrons and protons Both A & B Protons and electrons Neutrons and electrons Neutrons and protons Both A & B Protons and electrons Neutrons and electrons ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At a constant volume, for a fixed number of moles of a gas, the pressure of the gas increases with rise of temperature due to Decrease in mean free path Increase in molecular attraction Increased collision rate among molecules Increase in average molecular speed Decrease in mean free path Increase in molecular attraction Increased collision rate among molecules Increase in average molecular speed ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A solution of specific gravity 1 consists of 35% A by weight and the remaining B. If the specific gravity of A is 0.7, the specific gravity of Bis 1.25 1.3 1.2 1.35 1.25 1.3 1.2 1.35 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A car tyre of volume 0.057 m³ is inflated to 300 kPa at 300 K. After the car is driven for 10 hours, the pressure in the tyre increases to 330 kPa. Assume air is an ideal gas and Cv for air is 21 J/mole.K. The change in the internal energy of air in the tyre in J/mole is 880 380 630 760 880 380 630 760 ANSWER DOWNLOAD EXAMIANS APP
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