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Stoichiometry

Stoichiometry
For a reacation, X → Y, if the concentration of 'X' is tripled; the rate becomes nine times. The order of reaction is

1
3
2

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Stoichiometry
A vapor that exists above its critical temperature is termed as a __________ vapor.

Unsaturated
Gaseous
Sub-cooled
Saturated

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Stoichiometry
Heat capacity of air can be approximately expressed as, Cp = 26.693 + 7.365 x10⁻³ T, where, Cp is in J/mole.K and T is in K. The heat given off by 1 mole of air when cooled at atmospheric pressure from 500°C to - 100°C is

18.33 kJ
18.11 kJ
10.73 kJ
16.15 kJ

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Stoichiometry
Mass number of an atom is the sum of the numbers of

Protons and electrons
Both A & B
Neutrons and electrons
Neutrons and protons

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Stoichiometry
A gas occupies a volume of 283 c.c at 10°C. If it is heated to 20°C at constant pressure, the new volume of the gas will be __________ c.c.

141.5
283
566
293

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Stoichiometry
In case of vapor-liquid equilibria, which of the following does not account for gas phase deviation from ideality?

Fugacity co-efficient
Activity co-efficient
None of these
Use of equation of state

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