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Stoichiometry

Stoichiometry
Avogadro number is the number of molecules in one __________ of a gas.

Kilogram
Gm.mole
Gram
Litre

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Stoichiometry
What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20)?

AB₃
AB₂
A₂B₃
A₂B

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Stoichiometry
A car tyre of volume 0.057 m³ is inflated to 300 kPa at 300 K. After the car is driven for 10 hours, the pressure in the tyre increases to 330 kPa. Assume air is an ideal gas and Cv for air is 21 J/mole.K. The change in the internal energy of air in the tyre in J/mole is

630
380
880
760

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Stoichiometry
A 'limiting reactant' is the one, which decides the __________ in the chemical reacation.

Equilibrium constant
Rate constant
Conversion
None of these

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Stoichiometry
One micron is equal to __________ cm.

44110
44108
44112
44106

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Stoichiometry
One 'Therm' is equivalent to

10⁵ kcal
10⁵ BTU
10⁹ kcal
10⁹ BTU

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