5-The 1st law - BioE The first Law of Thermodynamics Energy...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Molecular BioEngineering Laboratory BioE The first Law of Thermodynamics Energy balance for a closed system Work and heat Enthalpy
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
BioE Boundaries ± Permeable and Impermeable Boundaries z Permeable Boundary: a boundary which allows mass flow. z Impermeable Boundary: a boundary which prohibits mass flow. ± Diathermal and Adiabatic Boundaries z Diathermal Boundary: a boundary which allows heat flow. z Adiabatic Boundary: a boundary which prohibits heat flow. ± Movable and Rigid Boundaries z Movable Boundary: a boundary which allows work transfer. z Rigid Boundary: a boundary which prohibits work transfer.
Background image of page 2
BioE Various Boundaries 可滲透 導熱 可移動 不可滲透 絕熱 固定
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
BioE Systems defined by their boundary ± Open System : permeable boundary. ± Closed System : a impermeable boundary. ± Adiabatic System : adiabatic boundary. ± Isolated System : impermeable, adiabatic and rigid boundary. ± Simple system : 1) a system without internal impermeable, adiabatic, or rigid wall. 2) a system without inertial motion. 3) a system is unaffected by external force field. 4) the boundary of the system does not accumulate or dissipate energy.
Background image of page 4
BioE Open, closed and isolated system
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
BioE The 1st law of thermodynamics ± The first law of thermodynamic is actually the Energy Conservation Law ± The Energy (E) described in the first law of thermodynamics includes: z System energy: ² Internal Energy (U), ² Kinetic energy of the system ( E K ) , and ² Potential energy ( E P ) of the system.
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 39

5-The 1st law - BioE The first Law of Thermodynamics Energy...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online