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69 views

What is the difference of work $W$ and thermal energy $Q$ in thermodynamic Stirling-process for ideal gas?

What is the difference of work $W$ and thermal energy $Q$ in thermodynamic Stirling-process (in simple form) for ideal gas? I think that you need work to preserve this process and you bring thermal ...
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0answers
79 views

How can I measure the calories consumed in daily activity? [closed]

From a nice question here: How are the calories in food calculated? I can roughly understand how people provide the data of calories in certain food. However, I am still confused about 2 things. 1) ...
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0answers
141 views

Air condition and net heat [closed]

I have attempted to solve a problem, but my answer is not quite the same as in the book. Thus, I would really appreciate it if someone could confirm/disconfirm whether or not my solution is correct. ...
1
vote
1answer
261 views

ratio between work and heat [closed]

I am really stuck on a problem in my textbook: Water is heated in an open pan where the air pressure is one atmosphere. The water remains a liquid, which expands by a small amount as it is heated. ...