C1g Heat Engine Cycles

According to Kelvin-Planck's statement of second law of thermodynamics,

• it is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work

• it is possible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work

• it is impossible to construct a device which operates in a cyclic process and produces no effect other than the transfer of heat from a cold body to a hot body

• none of the above

Which of the following is the correct statement of the second law of thermodynamics?

• It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work.

• It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source

• There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy.

• all of the above

A reversed heat engine

• receives heat from a low temperature region

• gives heat to a high temperature region

• receives a net inflow of work

• all of the mentioned

The ideal thermodynamic cycle is called 

• the Crovener cycle
• the Carnot cycle
• the Nitrogen cycle
• the Somenoc cycle

Tags

NGSS.HS-PS3-4

The 2nd Law of Thermodynamics tells us...

• Heat flows from cold to hot.

• Heat flows randomly, it's a 50/50 coin flip

• Heat doesn't flow, temperature flows.

• Heat flows from hot to cold.

Tags

NGSS.HS-PS3-4

What is "Entropy"?

• The tendency of objects to warm up
• The tendency of energy to spread out
• The tendency of energy to make heat
• The tendency of objects to do work

Tags

NGSS.HS-PS3-4

Energy cannot be created or destroyed.

• 0th law

• 1st law

• 2nd law

• 3rd law

This is the Carnot Cycle. Which part shows isothermal expansion?

• 3 to 2

• 4 to 1

• 3 to 4

• 2 to 1

This is the Carnot Cycle. Which part shows isothermal compression?

• 1 to 4

• 4 to 1

• 3 to 4

• 2 to 3

This is the Carnot Cycle. Which part shows adiabatic compression?

• 4 to 3

• 1 to 2

• 1 to 4

• 2 to 3