Stoichiometry | Test For NTS PPSC FPSC, TEST

A. Inventory changes do not take place
B. Ratio of streams entering/leaving are independent of time
C. Flow rates & composition both are time dependent
D. None of these

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Category: Stoichiometry

The heats of vaporisation of CS2, C2H5OH &H2O are 26.8, 38.6 & 40.6 KJ/kg.mole respectively. The order of decreasing inter-molecular forces in these liquids is________________?

Boiling point of a solution as compared to that of the corresponding solvent is _________________?

In the reaction, Ca + 2H2O = Ca(OH)2 + H2; what volume (c.c.) of hydrogen at STP would be liberated, when 8 gm of calcium reacts with excess water ? (Atomic weight of calcium = 40) ?

With increase in temperature, the surface tension of water _____________________?

A chemical process is said to occur under unsteady state, if the_________________?

Viscosity of atmospheric air may be about _____________ centipoise?

A vessel of volume 1000 m3 contains air which is saturated with water vapour. The total pressure and temperature are 100 kPa and 20°C respectively. Assuming that the vapour pressure of water at 20°C is 2.34 kPa, the amount of water vapour (in kg) in the vessel is approximately ?

Total energy at a point comprises of _____________ energy?

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

Heat of reaction is a function of the___________________?