Unit 1 (Chap 1, 3 & 14)

Front

What is the state of matter at Standard Temperature and Pressure (STP)?

Back

Gas

Front

What is the equivalent pressure of 76 mmHg in atmospheres (atm)?

Back

0.1 atm

Front

What can a hypothesis be elevated to after repeated experimentation?

Back

Theory

Front

How can water be made to boil at a temperature higher than 100°C?

Back

By increasing the air pressure above the water.

Front

How would you classify the statement: 'Water boils at a higher temperature than ethanol'?

Back

Observation.

Front

What is a phase diagram?

Back

A graphical representation of the physical states of a substance under different conditions of temperature and pressure.

Front

What is the boiling point of water at 1 atm pressure?

Back

100°C

Front

What happens to the boiling point of a liquid when the external pressure is increased?

Back

The boiling point increases.

Front

What is the definition of a scientific law?

Back

A statement based on repeated experimental observations that describes some aspects of the universe.

Front

What is the difference between a scientific theory and a scientific law?

Back

A theory explains why phenomena occur, while a law describes how phenomena occur.