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Stoichiometry

Stoichiometry
Isotopes are atoms having the same

Number of neutrons
Mass number
None of these
Atomic mass

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Stoichiometry
In physical adsorption, as compared to chemisorption, the

Activation energy is very high
Rate of adsorption is controlled by the resistance to surface reaction
Quantity adsorbed per unit mass is higher
Heat of adsorption is very large

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Stoichiometry
The number of atoms of oxygen present in 11.2 litres of ozone (O₃) at N.T.P. are

6.02 x 10²³
3.01 x 10²²
9.03 x 10²⁴
1.20 x 10²⁴

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Stoichiometry
Assuming that CO₂ obeys perfect gas law, calculate the density of CO₂ (in kg/m³) at 263°C and 2 atm.

4
2
1
3

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Stoichiometry
1 bar is almost equal to __________ atmosphere.

100
1
10
1000

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Stoichiometry
During a phase change process like sublimation, vaporisation, melting etc., the specific __________ does not change.

Entropy
Gibbs free energy
Enthalpy
Internal energy

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