For one mole of a gas, the ideal gas equation is

1

(a)

PV =\(\frac{1}{2}\)RT

(b)

PV=RT

(c)

PV =\(\frac{3}{2}\)RT

(d)

PV =\(\frac{5}{2}\)RT

The cleansing action of soaps and detergents is due to

1

(a)

internal friction

(b)

high hydrogen bonding

(c)

viscosity

(d)

surface tensions

In van der Waals equation of state for a non-ideal gas the net force of attaction among the molecules is given by

1

(a)

\(\frac{an^2}{V^2}\)

(b)

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

(c)

P-\(\frac{an^2}{V^2}\)

(d)

-\(\frac{an^2}{V^2}\)

The compressibility factor, z for an ideal gas is

1

(a)

zero

(b)

less than one

(c)

greater than one

(d)

equal to one

Which of the following gases will have the lowest rate of diffusion?

1

(a)

H₂

(b)

N₂

(c)

F₂

(d)

O₂

What is the value of gas constant in SI units?

1

(a)

  8.314 JK^-1 mol = -1

Name two intermolecular force that exists between HF molecules in a liquid state.

1

(a)

HF molecules are polar covalent molecules.In a liquid state, there are dipole-dipole interactions and H-bonding.