The deviation of a gas from ideal behavior is expected to be minimum at -                                    

1. 350 K and 3 atm                   

2. 550 K and 1 atm

3. 250 K and 4 atm                   

4. 450 K and 2 atm

The condition of SATP refers to:

1. 25 $°$C and 2 atm             

2. 25 $°$C  and 1 atm

3. 0 $°$C  and 2 atm             

4. 25 $°$C  and 1 bar

The curve that can not represent Boyle's law is -

1.   

2.  

3.  

4.  

The compressibility factor of an ideal gas is:

1. zero                         

2. infinite

3. 1                               

4. -1

At lower temperature, all gases except H₂ and He show:

1. Negative deviation

2. Positive deviation

3. Positive and negative deviation

4. None of the above

If an open container is heated from 300 K to 400 K, then the % of gas that remains in the container is-

1. 25%

2. 50%

3. 75%

4. 100%

The gas among the following that can be most readily liquified is-

( Value of 'a' for NH₃ = 4.17, CO₂ = 3.59, SO₂ = 6.71, Cl₂ = 6.49)

1. NH₃

2. Cl₂

3. SO₂

4. CO₂

At moderate pressure, the van der Waal's equation becomes:

1. PV_m = RT

2. P(V_m-b) = RT

3. (P+a/V²_m) (V_m )= RT

4. P = RT/V_m + a/V²_m

Which among the following mixtures of gases at room temperature does not obey Dalton's law of partial pressure-

1. He and O₂

2. NH₃ and HCl

3. H₂ and He

4. N₂ and He

1.6 g O₂ gas and 0.1 g H₂ gas are placed in a 1.12 L flask at 0 ^oC. The total pressure of the gas mixture will be-

1. 2 atm

2. 3 atm

3. 4 atm

4. 1 atm