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Stoichiometry

Stoichiometry
The rate of material __________ is zero in case of a steady state system.

Production
Input
Accumulation
Generation

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Stoichiometry
For an endothermic reaction, the minimum value of energy of activation will be (where, ΔH = enthalpy of the reaction)

>ΔH
Δ H

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Stoichiometry
The value of gas constant 'R' is __________ kcal/kg.mole.°C.

1.987
3.99
None of these
2.79

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Stoichiometry
Pick out the wrong unit conversion of calorific value.

1 kcal/m³ = 0.1124 BTU/ft³
1 BTU/lb = 2.3 kcal/kg
1 BTU/ft³ = 8.9 kcal/m³ = 0.038 MJ/m³
1 kcal/kg = 1.8 BTU/lb = 4.186 kJ/kg

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Stoichiometry
In __________ process, ions of salts react with water to produce acidity or alkalinity.

Hydration
Dialysis
Electrolysis
Hydrolysis

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Stoichiometry
With increase in the temperature of pure (distilled) water, its

PH and pOH both increases
PH decreases and pOH increases
POH and pH both 4ecreases
POH decreases and pH increases

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