• After witnessing the continued decrease of involvement in the SpotterNetwork staff in serving SN members with troubleshooting issues recently, I have unilaterally decided to terminate the relationship between SpotterNetwork's support and Stormtrack. I have witnessed multiple users unable to receive support weeks after initiating help threads on the forum. I find this lack of response from SpotterNetwork officials disappointing and a failure to hold up their end of the agreement that was made years ago, before I took over management of this site. In my opinion, having Stormtrack users sit and wait for so long to receive help on SpotterNetwork issues on the Stormtrack forums reflects poorly not only on SpotterNetwork, but on Stormtrack and (by association) me as well. Since the issue has not been satisfactorily addressed, I no longer wish for the Stormtrack forum to be associated with SpotterNetwork.

    I apologize to those who continue to have issues with the service and continue to see their issues left unaddressed. Please understand that the connection between ST and SN was put in place long before I had any say over it. But now that I am the "captain of this ship," it is within my right (nay, duty) to make adjustments as I see necessary. Ending this relationship is such an adjustment.

    For those who continue to need help, I recommend navigating a web browswer to SpotterNetwork's About page, and seeking the individuals listed on that page for all further inquiries about SpotterNetwork.

    From this moment forward, the SpotterNetwork sub-forum has been hidden/deleted and there will be no assurance that any SpotterNetwork issues brought up in any of Stormtrack's other sub-forums will be addressed. Do not rely on Stormtrack for help with SpotterNetwork issues.

    Sincerely, Jeff D.

Thermodynamics Q&A

Tony Laubach

Tony Laubach

EF5
Joined
Mar 2, 2004
Messages
2,406
Location
Northern Colorado
Help with homework!!!

QUESTION: Specific volume of dry air (1kg) has a pressure of 1000mb at a temperature of 10C. Heat is added to the volume in an isobaric process, during which the volume has increased by 10%, calculate the following properties of the volume...

a) The Final Temp


B) Work Done


c) Heated Added


d) The Change in Entropy


e) The Change in Potential Temperature


Anyone who knows a good website that would help me with Entropy, Enthalpy, and other thermo stuff, please pass them along. I've never had a mind for this kind of stuff. :cry:
 
Use PV=nRT to find initial volume, correct any units so that it may work with the constant your using. Then times the initial volume by 1.1 to get volume final and then put it back into PV=nRT and all the other stuff except Temp initial to solve for Tf.

W=nR*(change in T)= p*(change in V)

Heat = C*(Tf-Ti)

Entropy Change = nR*ln(Vf/Vi)+nCv*ln(Tf/Ti)

I’m not sure exactly what you mean by Change in Potential Temperature. If you mean change in temp then it is Tf-Ti.

I think all this works?! Don't hate me if I'm wrong, LOL...

I'd solve but I gotta do relativity tonight :shock: .
 
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