-
Recent Posts
- How is energy from solar panels converted to energy that can be used for solar power?
- GLOBAL WARMiNG?
- Where do I find valuable information about green living and a healthy diet?
- How do I replace deleted environment variables in Windows Vista?
- Is the Wood burning car the greenest of the alternative fuel vehicles?
Tags
Afp Barack Obama Business China Clean Energy Climate Change Congress Earth Electricity energy Energy Efficiency Energy News Environment friday global Global Warming green Green Energy Green Living house Lot News Obama Photo Politics power president president-barack Renewable Energy science solar Solar Energy Solar Panels Solar Power table-border Technology top-cellpadding tuesday united United States week world Yahoo Yahoo Finance Yahoo NewsArchives
- March 2010
- February 2010
- January 2010
- December 2009
- November 2009
- October 2009
- September 2009
- August 2009
- July 2009
- June 2009
- May 2009
- April 2009
- March 2009
- February 2009
- January 2009
- December 2008
- November 2008
- October 2008
- September 2008
- August 2008
- July 2008
- June 2008
- May 2008
- April 2008
- March 2008
- February 2008
- January 2008
Meta
Categories
- Accessories
- Advice
- Alternative Fuel Vehicles
- Alternative Medicine
- Astronomy & Space
- Automotive
- Beer, Wine & Spirits
- Biology
- Business
- Cabo San Lucas
- Careers
- Causes And Organizations
- Chemistry
- Computers
- Diy
- Do It Yourself (DIY)
- Drinks
- Education
- Electronics
- Engineering
- Entertainment
- Entrepreneurship
- Environment
- Finance
- Food And Beverage
- Global Warming
- Green Living
- Health
- Home And Family
- Home Improvement
- Homework Help
- International Business
- internet
- Investing
- Kitchens
- Law
- Maintenance & Repairs
- Motivational
- Mysticism
- New Age
- News
- Non Fiction
- Non Profit Organizations
- Non-Alcoholic Drinks
- Nonprofit
- Nutrition
- Object
- Other – Cars & Transportation
- Other – Electronics
- Other – Food & Drink
- Other – Health
- Other – Home & Garden
- Other – Science
- Pets
- Physics
- Politics
- Real Estate
- Regulatory Compliance
- Reiki
- Religion
- Self Help
- Self Improvement
- Self Publishing
- Spirituality
- Sports And Fitness
- Taxes
- Technology
- Tennis
- Tools And Equipment
- Trucks
- Uncategorized
- United States
- Weight Loss
February 1st, 2010 at 6:00 am
The "circles" represent system boundaries.
The size and number of systems depend on what variables you have been given and what you need to find out.
The word equlibrium means that you need to pay attention to both the ice and the tea, so i would draw my system boundary around the tea glass.
If they gave you the temperature of the room and told you to give them the equilibrium temperature of the tea and ice, you would still just draw the system boundary around the tea glass. You would simply define the air as being a Q in.
If they ask for the temperature of the equibrium temperature of the room, tea, and ice then you have to include the room in your system.
It takes practice. (i focused on the engineering use of boundaries; highschool teachers often don’t know what is going on and are just using it as busy work. If thats the case, you better learn it from them and consider it a non-practical memorizing game)
Cheers!