# data[].attributes.headline
An adiabatic expansion lowers the temperature of agas.

# data[].attributes.subject
An adiabatic expansion lowers the temperature of agas.

# data[].attributes.headline
An adiabatic compression raises the temperature of agas.

# data[].attributes.subject
An adiabatic compression raises the temperature of agas.

# data[].attributes.headline
A constant-pressure process appears on a pV diagram as a horizontal line.

# data[].attributes.subject
A constant-pressure process appears on a pV diagram as a horizontal line.