Stoichiometry Questions

• In a mixture of benzene vapor and nitrogen gas at a total pressure of 900 mm Hg, if the absolute humidity of benzene is 0.2 kg benzene/kg nitrogen, the partial pressure of benzene in mm Hg is
• How much O2 can be obtained from 90 kg of water?
• The quantity of heat required to evaporate 1 kg of a saturated liquid is called
• For the gaseous phase reaction, N2 + O2⇌2NO, ΔH = + 80 kJ/kg. mole; the decomposition of NO is favoured by
• 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
• Addition of a non-volatile solute to a pure solvent
• What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20)?
• Vapor pressure of a solution is proportional to(where, Sv and St are mole fraction of solvent and solute respectively).
• 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
• Which of the following terms of Vander Walls equation of state for a non-ideal gas accounts for intermolecular forces?
• Pick out the wrong statement:
• Pick out the wrong unit conversion.
• 500 c.c. each of hydrogen at 700 mm Hg pressure and oxygen at 600 mm Hg pressure are put together in a vessel of 1 litre capacity. The final pressure of the gas mixture will be __________ mm Hg.
• At higher temperatures, molal heat capacities for most of the gases (at constant pressure) __________ with increase in temperature.
• In which of the following case of mixing of a strong acid with strong base (each of 1N concentration), temperature increase will be the highest?
• Disappearance of snow in subzero weather exemplifies the process of
• One 'Therm' is equivalent to
• In case of a solution (not of a solid in a liquid), whose total volume is less than the sum of the volumes of its components in their pure states, solubility is
• Which of the following has the smallest least effect on the solubility of a solute into the solvent?
• For an endothermic reaction, the minimum value of energy of activation will be (where, ΔH = enthalpy of the reaction)