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Stoichiometry

Stoichiometry
The molecular velocity of a real gas is proportional to (where, T = absolute temperature of the gas).

T²
1/√T
T
√T

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Stoichiometry
Pick out the wrong unit conversion of calorific value.

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

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Stoichiometry
A solution having a pH value of 5 is less acidic than the one having a pH value of 2 by a factor of

3
100
1000
None of these

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Stoichiometry
Refluxing of part of the distillate in a fractionating column is a 'recycling operation', aimed primarily at

Heat conservation
Yield enhancement
Product enrichment
None of these

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Stoichiometry
°API gravity of water at N.T.P. is about

100
1
10

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Stoichiometry
For estimation of heat capacity of a solid compound, one can use

Trouton's rule
Clayperon's equation
Kopp's rule
Gibb's equation

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