Stoichiometry The heat change for the reaction, C(s) + 2S(s) → CS₂(l), is 104.2 kJ. It represents the heat of Combustion Fusion Solution Formation Combustion Fusion Solution Formation ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The atomic heat capacities of all solid elements __________ with decrease in temperature. Remains unchanged Decreases Increases Approach zero at 0°C Remains unchanged Decreases Increases Approach zero at 0°C ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The effect of pressure on the heat capacity of the gases __________ is negligible. Below the critical temperature At pressure below one atmosphere Neither A nor B Both A & B Below the critical temperature At pressure below one atmosphere Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry In case of a solution (not of a solid in a liquid), whose total volume is more than the sum of volumes of its components in their pure states, solubility is Independent of the temperature Increased with the increase in pressure Decreased with the increase in pressure Unchanged by the pressure change Independent of the temperature Increased with the increase in pressure Decreased with the increase in pressure Unchanged by the pressure change 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 Of the same acidity More acidic Neutral Basic Of the same acidity More acidic Neutral Basic 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? 200°C 273°C 100°C 273°K 200°C 273°C 100°C 273°K ANSWER DOWNLOAD EXAMIANS APP
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