Thermodynamics - Science Olympiad 2019

the world's first commercially useful steam engine built by Thomas Savery (1698) was the...

• Model Engine

• Stage 1 Engine

• Savery Engine

• Automated Engine

• Jet Engine

Zeroth law of thermodynamics is:

• Kinetic energy of molecules of a gas is zero

• Ideal gas does not contain molecules

• If two systems are thermal equilibrium third one is also in equilibrium

• Absolute zero temperature cannot be obtained

+ΔH

• endothermic

• exothermic

• entropy

• gibe's free energy

-ΔH

• endothermic

• exothermic

• entropy

• gibe's free energy

A slower particle has a lower energy than an identical, faster particle.

• True
• False

Tags

NGSS.HS-PS3-2

Someone offers you a charger they claim will charge your phone and will keep your phone from ever running out a charge again. What do you say in response to this claim?

• This breaks the zeroth law of thermodynamics because the charger and the phone are at thermodynamic equilibrium but are not at the same temperature

• This breaks the first law of thermodynamics because more energy would be coming out than was put in to the phone

• This breaks the second law of thermodynamics because the phone is an isolated system and entropy is being reduced inside of it

• This breaks the zeroth law of thermodynamics because the phone is a pure crystal at 0 Kelvin but still has entropy

Which is the best description of radiation?

• Energy exchange through gas or liquid where the fluid travels upward while hot and drifts back down when cooled

• Energy transfer from direct contact between two solids

• Energy transfer through a vacuum where the energy radiates out from a center point

• What makes Hulk big and green

Which is true of entropy?

• It is described in the first law

• It is needed to start a perpetual motion machine

• It is constantly increasing in the universe

• It is the most common heat course

Joule (J)

• The unit of energy.
• Unit of power
• The unit of speed
• The unit of charge

The __________ law of thermodynamics states that entropy is always increasing. 

• first
• second
• third
• zeroth

Tags

NGSS.HS-PS3-4