Methane is mixed with stoichiometric proportion of oxygen and completely combusted. The number of additional specifications required to determine the product flow rate and composition is
A vessel of volumem3 contains air which is saturated with water vapour. The total pressure and temperature arekPa and 20°C respectively. Assuming that the vapour pressure of water at 20°C is 2.kPa, the amount of water vapour (in kg) in the vessel is approximately
A gaseous mixture containskg of N2,kg of O2 andkg of NH3. The mole fraction of oxygen is
Pure oxygen is mixed with air to produce an enriched air containingvolume % of oxygen. The ratio of moles of air to oxygen used is
According to the kinetic theory, the thermal conductivity of a monoatomic gas is proportional to
The depression in freezing point of a solution is
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. The temperature at which the above mixture will exert a pressure of one standard atm. is
Cv for monoatomic gases is equal to(where, R = gas constant)
Internal energy is independent of the __________ for an ideal gas.
Except for monoatomic gases, the molal heat capacity at constant volume for all gases is __________ Kcal/Kg mole.° K.
In a neutral solution
1 bar is almost equal to __________ atmosphere.
With rise in temperature, the solubility of ammonia in water at a fixed pressure
The number of H+ in 1 c.c solution of pHis
Pick out the correct statement.
Normality of a solution does not change with the increase in the
The quantity of heat required to evaporate 1 kg of a saturated liquid is called
Pick out the wrong unit conversion of thermal conductivity.
Cp - Cv, for an ideal gas is equal to
An aqueous solution of 2.by weight H2SO4 has a specific gravity of 1.The composition expressed in normality is
Which of the following ideal gas laws are not applicable to mixture of gases ?
Othmer chart is useful in estimating the heat of
Volume occupied by one gm mole of a gas at S.T.P. is
A solution of specific gravity 1 consists ofA by weight and the remaining B. If the specific gravity of A is 0.the specific gravity of Bis
Unit of power is
__________ fuels require the maximum percentage of 'excess air' for complete combustion.
Heat of reaction is a function of the
In __________ process, ions of salts react with water to produce acidity or alkalinity.
Kopp's rule is useful for the determination of
If the pH value of a solution changes by one unit, it implies that hydrogen ion concentration in the solution will change __________ times.
The temperature at which a real gas obeys Boyle's law is termed as the
Applicability of Claussius-Clapeyron equation is subject to the condition that the
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
The vapor pressure of water at 100°C is
Which of the following is insensitive to changes in pressure ?
Avogadro's number is equal to
__________ equation relates latent heat and boiling point.
Enthalpy of a vapor gas mixture may be increased by increasing the
The gravimetric (i.e., by weight) composition of a vapor saturated gas is independent of the
Pick out the wrong unit conversion.
For the gaseous phase reaction, N2 + O22NO, ΔH = +kJ/kg. mole; the decomposition of NO is favoured by
Variation of vapor pressure with temperature can be calculated using Clausius-Clapeyron equation, which assumes that the
The unit of Cp in S.I. units is
Dry air is a mixture of
A vapor whose partial pressure is less than its equilibrium vapor pressure is called the __________ vapor.
With rise in temperature, the heat capacity of a substance
1m3 is approximately equal to
The heat capacity of a solid compound is calculated from the atomic heat capacities of its constituent elements with the help of the
The vapour pressure of a solution (made by dissolving a solute in a solvent) is __________ that of the pure solvent.