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.Management Sciences
Category: Stoichiometry
The heat capacity of a substance is ____________________?
A. Greater for liquid state than for solid state
B. Lower for liquid state than for gaseous state
C. Higher for solid state than for liquid state
D. Equal for solid and liquid states below melting point
Presence of MgO in alumino-silicate refractories ______________ its refractoriness ?
A. Increases
B. Lowers
C. Does not affect
D. Either A. or B.; depends on its quantity
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 ?
A. 30 c.c acid and 30 c.c base
B. 20 c.c acid and 25 c.c base
C. 15 c.c acid and 35 c.c base
D. 35 c.c acid and 15 c.c base
Which equation is not an equation of state ?
A. PV = RT + B/V + y/V2 + ….
B. (P + a/V2)(V-b) = RT
C. loge (p/p0) = (λ/R) (1/T0 – 1/T)
D. p = [RT/(V – b)] – (a/TV2)
Kopp’s rule is useful for the determination of_____________________?
A. Molal heat capacities of gases
B. Heat capacities of solids
C. Activation energy
D. Heat capacities of gases
Assuming applicability of ideal gas law, the pure component volume of the vapor in a saturated gas can be calculated from theoretical relationship. The volumetric composition of a vapor saturated gas is independent of the___________________?
A. Nature of the liquid
B. Nature of the gas
C. Temperature of the liquid
D. Total pressure
Number of gram equivalent of solute dissolved in one litre of solution is called its___________________?
A. Normally
B. Molarity
C. Molality
D. Formality
Solutions which distil without change in composition are called________________?
A. Ideal
B. Saturated
C. Supersaturated
D. Azeotropic
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