Related Questions

With increase in the concentration of the adsorbate, the integral heat of adsorption
A Increases
B Decreases
C Remains unchanged
D May increase or decrease ; depends on the type of adsorbate
The change in enthalpy per unit weight of adsorbed gas when adsorbed on gas free or "outgassed" adsorbent to from a definite concentration of adsorbate is called its
A Integral heat of adsorption
B Heat of wetting
C Differential heat of adsorption
D Heat of normal condensation
100 kg of solution A is mixed with 60 kg of solution B . If solution A has tin and copper in the ratio 1: 4 and solution B has lead and tin in the ratio 3 :2 then what is the amount of tin in the new solution?
A 70 kg
B 36 kg
C 44 kg
D 56 kg
Solution X contains 7% (by weight) of liquid M and solution Y contains 14.5% (by weight) of liquid M. If 3 grams of solution X is mixed with 2 grams of solution Y, then liquid M accounts for what percent of the weight of the resulting solution?
A 6.09%
B 10%
C 10.75%
D 21.5%
Solution X is 10% percent alcohol by volume, and solution Y is 30 percent alcohol by volume. How many milliliters of solution Y must be added to 200 milliliters of solution X to create a solution that is 25 percent alcohol by volume?
A 600
B 800
C 300
D 250
E None of these
Osmosis is the flow of solution from higher concentration to a solution of lower concentration through a semi permeable membrane. What is incorrect in this statement?
A Exact concentration of solution is not given
B Character of semi permeable membrane is not given
C The flow of solution is not possible through semi permeable membrane
D All are incorrect
How are the efficiencies of any heat engine (miu) and reversible heat engine (miuR) compared, when both are operating between same heat source and same heat sink?
A miu = miuR
B miu>miuR
C miu
D none of these
If the pH value of a solution changes by one unit, it implies that hydrogen ion concentration in the solution will change __________ times.
A 10
B 20
C 70
D 100
The pH value is the measure of hydrogen ion concentration in a solution. The term pH stands for the __________ in the solution.
A Power of hydrogen ion concentration
B Percentage of hydrogen ions
C Presence of hydrogen ions
D None of these
Concentration of a solution expressed in terms of __________ is independent of temperature.
A Molarity
B Normality
C Molality
D None of these

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