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Nesterboy [21]
3 years ago
11

To understand the meaning and applications of the second law of thermodynamics, to understand the meaning of entropy, and perfor

m some basic calculations involving entropy changes. The first law of thermodynamics (which states that energy is conserved) does not specify the direction in which thermodynamic processes in nature can spontaneously occur. For example, imagine an object initially at rest suddenly taking off along a rough horizontal surface and speeding up (gaining kinetic energy) while cooling down (losing thermal energy). Although such a process would not violate conservation of energy, it is, of course, impossible and could never take place spontaneously. The second law of thermodynamics dictates which processes in nature may occur spontaneously and which ones may not. The second law can be stated in many ways, one of which uses the concept of entropy.
Social Studies
1 answer:
marusya05 [52]3 years ago
4 0

Answer:

The first law of thermodynamics is also known as the principle of conservation of energy. It states that if work is done on one system or it exchanges heat with another, the internal energy of the system will change.

The second law of thermodynamics marks the direction in which thermodynamic processes must be carried out and the impossibility of their occurrence in the opposite direction. It also establishes the impossibility of completely converting all the energy of one type into another without losses.

Explanation:

The first law of thermodynamics can be expressed as "energy is neither created nor destroyed, only transformed." This law defines heat as the necessary energy that the system must exchange to compensate for differences between work and internal energy.

In this way, the second law of thermodynamics imposes restrictions for energy transfers that could be carried out taking into account only the first principle. This law supports all its content and accepts the existence of entropy, so that, for an isolated system (there is no exchange of matter or energy with its surroundings), the variation of entropy must always be greater than zero.

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Answer:

Personal Opportunity Cost - Spare non drive time sacrifised

Social Opportunity Cost - Fuel efficiency (high pollution), Road Traffic (Congestion issues).

Explanation:

Opportunity Cost  is the cost of next best alternative, foregone while choosing an alternative. Bill can commute either by bus, or by self drive.

If Bill drives his car, opportunity cost for him is - the spare time sacrifised, that he could have used while car drive in some other activity (eg reading, listening music).

Opportunity Cost for society is - the fuel utilisation & road traffic management  efficiency sacrifised, by using private instead of public transport. This leads to more pollution, more congestion on roads.

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3 years ago
What is the commonly stated goal for most development projects? Group of answer choices increased equity cultural assimilation d
mezya [45]

The correct answer is increased equity

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3 years ago
Explain one advantage of using a river as a boundary.
Elza [17]

An advantage of using a river as  boundary is that its creates a clear line which made the boundary very solid and indisputable.

<h3>What is a boundary?</h3>

A boundary means a land location that differentiate the extent of the territory of two or more country, state, city, town etc

Some region were able to use river as boundary because of its presence whereas some region without river may use a structure to show the boundary.

Hence, the advantage of using a river as boundary is that iys creates a clear and visible separate line which made them solid and indisputable.

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7 0
2 years ago
What can you conclude about the purpose of Grady's speech?
alexandr402 [8]

Hi!


Henry Grady and His New South Speech. A man of great charisma and incredible oratory skills, Grady was a man with a goal. ... In that renowned speech he referred to what famously became known as the "New South." It was a speech and a phrase that would forever change the perceptions and views of the South.


Hope this helps!


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5 0
3 years ago
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SCORPION-xisa [38]

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