![subject](/tpl/images/cats/fizika.png)
Physics, 26.01.2021 01:00 treyvoniskewl
For each of the situations described below, the object considered is undergoing some changes. Among the possible changes you should consider are: .
(Q) The object is absorbing or giving off heat.
• (T) The object's temperature is changing.
• (E) The object's thermal energy is changing.
• (W) The object is doing mechanical work or having work done on it. .
(C) The objects chemical energy is changing.
For each of the situations described below, identify which of the four changes are taking place and mark as many of the letters QTEW C (or none) as are appropriate.
1. A cylinder with a piston on top contains a compressed gas and is sitting on a thermal reservoir (a large iron block that maintains a constant temperature). After everything has come to thermal equilibrium, the piston is moved upward somewhat (very slowly). The object to be considered is the gas in the cylinder. OQ OT OE OWOC
2. Consider the same cylinder as in part 1, but it is wrapped in styrofoam, a very good thermal insulator instead of sitting on a heat reservoir. The piston is pressed downward (again, very slowly), compressing the gas. The object to be considered is the gas in the cylinder. OQ OT OE OWOC
3. A mixture of two moles of hydrogen gas and one mole of oxygen gas in a thermally insulated vessel of fixed volume is subjected to small spark (contributing negligible energy) and converts to water vapor. OQOT DE OWOC
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 16:00
Agroup of monkeys is trying to cross the river in a rowboat. the maximum buoyant force on the rowboat is 2,000 n. the weight of the rowboat is 1,000 n. each monkey has a weight of 150 n. how many monkeys can safely cross in the rowboat at one time? explain your reasoning, including any calculations you used to find the answer.
Answers: 1
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 10:30
How does the structure of methanol differ from the structure of methane
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 15:00
The & support center can provide online tutoring, answers to frequently asked questions (faqs), and information about how to contact your instructors.using the topics below, create an example of reinforcement for each
Answers: 1
You know the right answer?
For each of the situations described below, the object considered is undergoing some changes. Among...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.09.2019 00:20
![question](/tpl/images/cats/istoriya.png)
History, 20.09.2019 00:20
![question](/tpl/images/cats/biologiya.png)
Biology, 20.09.2019 00:20
![question](/tpl/images/cats/fizika.png)
Physics, 20.09.2019 00:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/es.png)
Spanish, 20.09.2019 00:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mir.png)
World Languages, 20.09.2019 00:20
![question](/tpl/images/cats/mat.png)
Mathematics, 20.09.2019 00:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 20.09.2019 00:20
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 20.09.2019 00:20
![question](/tpl/images/cats/mat.png)
Mathematics, 20.09.2019 00:20