Gases deviate from ideal behavior at high pressure. Which of the following statement(s) is correct for non-ideality?

(a)

at high pressure the collision between the gas molecule become enormous

(b)

at high pressure the gas molecules move only in one direction

(c)

at high pressure, the volume of gas become insignificant

(d)

at high pressure the intermolecular interactions become significant

A bottle of ammonia and a bottle of HCI connected through a long tube are opened simultaneously at both ends. The white ammonium chloride ring first formed will be ___________

(a)

At the center of the tube

(b)

Near the hydrogen chloride bottle

(c)

Near the ammonia bottle

(d)

Throughout the length of the tube

The table indicates the value of van der Waals constant 'a' in (dm³)² atm. mol^-2.

Gas	O2	N2	NH3	CH4
a	1.360	1.390	4.170	2.253

The gas which can be most easily liquefied is ______________

(a)

O₂

(b)

N₂

(c)

NH₃

(d)

CH₄

Four gases P, Q, R and S have almost same values of 'b' but their 'a' values (a, b are Vander Waals Constants) are in the order Q < R < S < P. At a particular temperature, among the four gases the most easily liquefiable one is __________

(a)

P

(b)

Q

(c)

R

(d)

S

The units of Vander Waals constants 'b' and 'a' respectively ____________

(a)

mol L^-1 and L atm² mol^-1

(b)

mol L and L atm mol²

(c)

mol^-1L and L² atm mol^-2

(d)

none of these

What is the density of N₂ gas at 227^o C and 5.00 atm pressure? (R = 0.082 L atm K^-1 mol^-1 )

(a)

1.40 g/L

(b)

2.81 g/L

(c)

3.41 g/L

(d)

0.29 g/L

25g of each of the following gases are taken at 27°C and 600 mm Hg pressure. Which of these will have the least volume?

(a)

HBr

(b)

HCI

(c)

HF

(d)

HI

The compressibility factor is given by _____________

(a)

Z = PV

(b)

Z = nRT

(c)

\(Z=\frac { nRT }{ PV } \)

(d)

\(Z=\frac { PV }{ nRT } \)

Statement I: H₂ when allowed to expand at room temperature it causes heating effect.
Statement II: H₂ has inversion temperature mush below room temperature.

(a)

Both statement I and statement II are true and statement II explains statement I.

(b)

Both statement I and statement II are true but statement II does not explain statement I.

(c)

Statement I is true but statement II is false.

(d)

Both the statements are false

The inversion temperature for a gas is given by _______________

(a)

\(\frac { 2a }{ Rb } \)

(b)

\(\frac { a }{ Rb } \)

(c)

\(\frac { Rb }{ 2a } \)

(d)

\(\frac { Rb }{ a } \)

The corrected term for pressure in the vanderwaal's equation of state is _____________

(a)

(V-b)

(b)

\(P+\frac { a }{ { V }^{ 2 } } \)

(c)

(b-V)

(d)

\(\frac { a }{ { V }^{ 2 } } \times P\)

Maximum deviations from ideal gas is expected from ___________

(a)

H₂(g)

(b)

N₂(g)

(c)

CH₄(g)

(d)

NH₃(g)

The scope of the plot between PV and P at constant temperature is _________

(a)

zero

(b)

1

(c)

\(\frac{1}{2}\)

(d)

\(\frac{1}{\sqrt2}\)

Which of the following is the correct mathematical relation for Charles' law at constant pressure?

(a)

\(V\propto T\)

(b)

\(V\propto t\)

(c)

\(V\propto \frac{1}{T}\)

(d)

all of above

The compressibility factor, z for an ideal gas is ________.

(a)

zero

(b)

less than one

(c)

greater than one

(d)

equal to one

Which one of the following is not a monoatomic gas?

(a)

Neon

(b)

Xenon

(c)

Argon

(d)

Oxygen

Which of the following is a triatomic gas at room temperature?

(a)

Oxygen

(b)

Helium

(c)

Ozone

(d)

Nitrogen

Among the following, which is deadly poison?

(a)

CO₂

(b)

HCN

(c)

HCI

(d)

NH₃