Heat Engines

The rest of the heat is removed and goes to the cold reservoir called ____

Tags

NGSS.HS-PS3-4

The main purpose of any heat engine is ........................................... . 

• To convert heat energy into movement, W.

• To convert heat energy into internal energy, W.

• To convert heat energy into work, W.

Which of the following branch of natural science deals with heat and its

transformation to various forms of energy?

• Heat

• Heat Engine

• Temperature

• Thermodynamics

Tags

NGSS.HS-PS3-4

Why does heat engine cannot be 100% efficient?

• Some of the steam cannot make the turbines to move.

• The energy converted to mechanical energy is not enough.

• It is because all heat is converted into work to perform its function.

• It is because part of the heat input is utilized for the mechanical work and

  some heat input cools down due to friction and for the cycle to happen.

Tags

NGSS.HS-PS3-4

What is heat engine?

• It is a device that converts electrical energy into heat energy.

• It is a device that converts thermal energy into chemical energy.

• It is a device that converts thermal energy into mechanical energy.

• It is a device that converts chemical energy into mechanical energy.

Tags

NGSS.HS-PS3-3

NGSS.HS-PS3-4