Homework #39: LT 17-25

Front

What does the kinetic molecular theory state about the particles of an ideal gas?

Back

The particles of an ideal gas are separated by great distances compared to their size.

Front

What is the color of powdered sulfur?

Back

Yellow.

Front

What happens to powdered iron when mixed with powdered sulfur at 20ºC?

Back

It remains magnetic.

Front

What does the kinetic molecular theory say about attractive forces between gas particles?

Back

The gas particles have no attractive forces between them.

Front

What property allows paper chromatography to separate colored dyes?

Back

Molecular polarity.

Front

What is the common process used to separate a mixture of ethanol and water?

Back

Distillation.

Front

Define ideal gas according to kinetic molecular theory.

Back

An ideal gas is a hypothetical gas whose particles have no volume and experience no intermolecular forces.

Front

What is the significance of molecular polarity in chromatography?

Back

Molecular polarity affects how different substances interact with the stationary and mobile phases, leading to separation.

Front

Explain the term 'distillation'.

Back

Distillation is a separation process that relies on differences in boiling points of substances.

Front

What is the role of intermolecular forces in the behavior of gases?

Back

In ideal gases, intermolecular forces are negligible, allowing particles to move freely.