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Stoichiometry

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

1/√T
T²
√T
T

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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
A₂B
A₂B₃
AB₂

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Stoichiometry
For the gaseous phase reaction, N₂ + O₂ ⇋ 2NO, ΔH = + 80 kJ/kg. mole; the decomposition of NO is favoured by

Increasing the concentration of N₂
Decrease in pressure
Decrease in temperature
Increase in pressure

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Stoichiometry
At what temperature, given mass of a gas that occupies a volume of 2 litres at N.T.P. will occupy a volume of 4 litres, if the pressure of the gas is kept constant?

273°K
273°C
100°C
200°C

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Stoichiometry
The total number of atoms in 8.5 gm of NH₃ is __________ x 1023.

9.03
1.204
3.01
6.02

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Stoichiometry
How many phases are present at eutectic point?

Unpredictable
1
2
3

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