Summary
Hoorcollege 5, Samenvatting warmte & gasdynamica
- Course
- Institution
Hoorcollege 5, Samenvatting warmte & gasdynamica. Eerstejaars forensisch onderzoek saxion
[Show more]
Seller
Follow
murronhoeve
Content preview
🌘Week 5 Warmte & Gasdynamica
Thermische processen
H19 Heat and the first Law of Thermodynamics
The first law of thermodynamics
Heat is defined as a transfer of energy due to a difference in temperature, whereas work is a transfer
of energy that is not due to a temperature difference. Work is done when energy is transferred from 1
object to another by mechanical means.
FIRST LAW OF THERMODYNAMICS : the change in internal energy of a closed system , dEint, will be
equal to the energy added to the system by heating minus the work done by the system in the
surroundings (gesloten systeem)
Bij open systemen alle toe en afnemen van massa meenemen!
Quantities which describe the state of a system, such as internal energy Eint, pressure P, volume V,
temperature T and mass m or number of moles n, are called state variables.
Een system met kinetische energie K (0.5*m*v^2), potentiële energie U (mgh) geeft voor de 1e
hoofdwet :
Week 5 Warmte & Gasdynamica 1
, The first law of thermodynamics applied; Calculating the Work
Er zijn 4 verschillende soorten processen
Isotherm dT = 0, geen verandering in temperatuur. If the system is an ideal gas, then PV = nRT.
The work done by the gas in an isothermal process equals the heat added to the gas.
Adiabatisch Q = 0, geen warmte uitwisseling met omgeving. The internal energy decreases if the
gas expansds, the temperature decreases as well. dEint = -W
Isobaar dP = 0, geen verandering in druk
Isovolumetrisch dV= 0, geen verandering in volume
Een verandering van de verrichte arbeid is afhankelijk van de volume verandering.
De verrichte arbeid is dan ook gelijk aan het oppervlak onder het PV - diagram.
Week 5 Warmte & Gasdynamica 2
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller murronhoeve. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.27. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
83430 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now