Gas Laws and Phase Changes Flashcard

Front

What happens to the temperature of a substance during a phase change from solid to liquid?

Back

The temperature remains constant.

Front

According to Charles's Law, what happens to the volume of a gas when the temperature increases at constant pressure?

Back

The volume increases.

Front

What is the effect on gas volume if the temperature is doubled while keeping the pressure constant?

Back

The volume doubles.

Front

In a heating curve, what does a sloped line represent?

Back

A change in temperature.

Front

During the phase change from liquid to gas, what happens to the temperature of the substance?

Back

The temperature remains constant.

Front

What is the definition of a phase change?

Back

A phase change is the transformation of a substance from one state of matter to another, such as solid to liquid or liquid to gas.

Front

What is the relationship between temperature and volume in Charles's Law?

Back

Charles's Law states that the volume of a gas is directly proportional to its temperature when pressure is held constant.

Front

What is the significance of the flat sections on a heating curve?

Back

The flat sections on a heating curve represent phase changes where the temperature remains constant as the substance absorbs or releases heat.

Front

What is the formula for Charles's Law?

Back

V1/T1 = V2/T2, where V is volume and T is temperature.

Front

What happens to the kinetic energy of particles during a phase change from solid to liquid?

Back

The kinetic energy of particles increases as they gain energy to overcome intermolecular forces.