Question

A.) T or F : Strong electrolytes completely dissociate in water to their contituent anions and cations.

B.) T or F: All atoms in a sample of gas move at 3R meters per second, where R=8.314.

C.) T or F: Equal volumes of two different gases at STP contain the same number of atoms.

D.) T or F: For an ideal gas, pressure and volume and directly proportional.

Answer 1

A) Substances like acids, bases and salts which can conduct electricity in their solution due to ionization are known as electrolytes. Electrolytes which undergo complete dissociation (or ionization) in solution are called strong electrolytes. Thus, the above given statement is True.

B) The average speed of particles in a gas is given as Root mean square speed (in m/s)

Where R=Gas constant=8.314 J/K.mol

T=Temperature in K

M=Molar mass of the gas in kg/mol

So above given statement is False.

C) Avogadro's law states that at the same temperature and pressure, equal volumes of different gases contain the same number of particles.

V/n=Constant

where V=Volume of gas

n=number of moles of gas

So the above given statement is True.

D) According to Boyle's law, the volume of a given amount of gas heldc varies inversely with the applied pressure.

where V=Volume of gas at given temperature

P=Pressure of gas at given temperature

So Volume and Pressure of a gas are inversely proprortional at a constant temperature. So the above given statement is false.