Thermodynamics - Closed Systems

The work associated with compressing or expanding a substance in a closed system is called _______ work.

• spring

• boundary

• shaft

• fluid

The boundary work of a constant-volume process is always zero.

• True

• False

A process is called ___________ if it behaves the relation Pvⁿ = constant.

• polytropic

• ideal

• quasi-equilibrium

• expansive

A polytropic process with n = 0 is

• isochoric.

• isothermal.

• isobaric.

• adiabatic.

One of the most common closed systems that we consider in thermodynamics is

• a blow dryer.

• a popped balloon.

• a nozzle.

• a piston-cylinder.

Tags

NGSS.HS-PS3-4

It is okay to use specific heats for determining u and h of H₂O and R-134a.

• True

• False

Tags

NGSS.HS-PS3-4

Specific heat is a property that describes how much heat is required to change a substance's __________.

• phase.

• composition.

• energy.

• temperature.

Tags

NGSS.HS-PS1-5

The Dallas Mavericks made a wise decision in trading Luka Doncic.

• True

• False