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Stoichiometry

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

3.01
9.03
6.02
1.204

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Stoichiometry
No cooling occurs, when an ideal gas undergoes unrestrained expansion, because the molecules

Exert no attractive force on each other
Collide without loss of energy
Are above the inversion temperature
Do work equal to loss in kinetic energy

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Stoichiometry
The amount of Zn (atomic weight = 65) required to form 224 c.c. of H₂ at N.T.P. on treatment with dilute H₂SO₄ will be __________ gm.

6.5
0.065
65
0.65

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Stoichiometry
The pressure of 'V' litres of a dry gas is increased from 1 to 2 kgf/cm² at a constant temperature. The new volume will become

V/4
V²
V/2
2V

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Stoichiometry
Enthalpy of a vapor gas mixture may be increased by increasing the

Temperature at constant humidity
Temperature and the humidity
Humidity at constant temperature
All of these

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Stoichiometry
Gases having same reduced temperatures and reduced pressures

Both A & B
Have nearly the same compressibility factor
Neither A nor B
Deviate from ideal gas behaviour to the same degree

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