Stoichiometry Quiz 3

For an ideal solution, the total vapor pressure varies ______ with the composition (expressed as mole fraction)?

Heat capacity of air can be approximately expressed as, Cp = 26.693 + 7.365 x10-3 T, where, Cp is in J/mole.K and T is in K. The heat given off by 1 mole of air when cooled at atmospheric pressure from 500?C to ? 100?C is ______?

If the absolute temperature of an ideal gas is tripled and simultaneously the pressure is reduced to one third; then the volume of gas will ________?

In general, the specific heats of aqueous solutions ______ with increase in the concentration of the solute?

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___________?

For a reaction, X ? Y, if the concentration of ?X? is tripled; the rate becomes nine times. The order of reaction is___________?

For most salts, the solubility increases with rise in temperature, but the solubility of ________ is nearly independent of temperature rise?

Fireclay bricks are not used in the_________?

Heat of neutralisation of a strong acid and strong base is always a constant value, i.e., 57 KJ/Kg mole. This is because__________?

For water evaporating into unsaturated air under adiabatic conditions and at constant pressure, the _____ remains constant throughout the period of vaporisation ?

For estimation of heat capacity of a solid compound, one can use_________?

Heat of reaction is not influenced by___________?

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___________?

Gases having same reduced temperatures and reduced pressures__________?

Hess?s law of constant heat summation is based on conservation of mass. It deals with _____?

If a solution of eutectic composition is cooled, ________ reaching the eutectic temperature ?

If the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will__________?

Heat of transition is the heat evolved or absorbed, when a substance is converted from__________?

Except for monatomic gases, the molal heat capacity at constant volume for all gases is ______ Kcal/Kg mole.? K?

Heat of _____ of a fuel is called its calorific value?

In ________ process, ions of salts react with water to produce acidity or alkalinity ?

Fusion point of a basic refractory material is_________?

How much O2 can be obtained from 90 kg of water ?

In case of an unsaturated vapor-gas mixture, the humid volume increases with increase in the_________?

If 1 Nm3 of O2 contains ?N? number of molecules, then number of molecules in 2Nm3 of SO2 will be__________?

High porosity refractory bricks have_________?

For an ideal gas, the compressibility factor_________?

Heat of solution in a system in which both solute and solvent are liquids is termed as__________?

If the partial pressure of the solvent in the vapor phase is equal to the vapor pressure of the solvent at that temperature, then the system is said to be at its_____?

In a binary liquid solution of components ?A? and ?B?, if component ?A? exhibits positive deviation from Raoult?s law, then component ?B? ?

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___________?

Gases diffuse faster compared to liquids because of the reason that the liquid molecules__________?

In a neutral solution __________?

Fireclay bricks are used in the_______?

In osmosis through a semi-permeable membrane, diffusion of the_____?

In a binary liquid system, the composition expressed as ________ is independent of the temperature & pressure?

Faster rate of drying of moulded refractories results in high _______ of refractories?

Fireclay bricks are not used in the__________?

Heat of reaction is a function of the_____?

How many phases are present at eutectic point ?

If pH value of an acidic solution is decreased from 5 to 2, then the increase in its hydrogen ion concentration is ______ times?

In case of a ternary system involving two liquid components and a solute, the ratio of the concentration of the solute in the two phases at equilibrium is called the distribution co-efficient. The distribution co-efficient depends upon the_______?

If pH value of a solution is 8, then its pOH value will be ______?

Heat of neutralisation of HCl and NaOH is ? 57.46 kJ/Kg mole. The heat of ionisation of water will be ______ kJ/Kg mole?

In case of vapor-liquid equilibria, which of the following does not account for gas phase deviation from ideality ?

For a given mass of a gas at constant temperature, if the volume ?V? becomes three times, then the pressure ?P? will become_______?

Hot metal runner in blast furnace are lined with _______ bricks?

For any system, the ______ heat of solution is dependent on the temperature and the adsorbate concentration?

Fireclay bricks is not used for lining the________?

In a chemical process, the recycle stream is purged for________?