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What law of thermodynamics requires the work output of the engine to equal the difference in the quantities of heat taken in and released by the engine?
Wiki User
∙ 7y ago
The first law of thermodynamics requires that the energy input to a system must equal the energy output from a system plus the accumulation of energy in a system. If no energy is accumulating then the energy input is the heat in and the energy output is the work and heat out.
Wiki User
∙ 7y ago
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Can we have physical quantities which have magnitude and direction but are not vectors if yes how?
yes we can have. for eg electric current, pressure etc though these quantities have both magnitude and direction their directions are not necessary to define them and vectors are those quantities which has magnitude and requires direction to be defined " quantities having both magnitude and direction is a vector" is not a corrrect definition ofa vector
What is the difference between electromagnetism and magnetism?
Magnetism is inclusive of electromagnetism. There is no difference. One can include curent flow, and one requires current flow.
What is the difference of the endothermic and exothermic change?
An endothermic change requires heat, and an exothermic change releases heat.
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Pass transports require no energy and active requires energy. Osmosis is when it travels through water.
Is heat added or released during freezing?
This is latent heat. When a liquid freezes heat is released, and when it melts the same amount of energy must be supplied. Similarly when a liquid changes to a vapor, or when a vapor condenses, heat must be supplied or is released. Latent heat varies from one substance to another, and can be quantified as so many calories per gram or kilogram, you can find data in reference tables
What is the difference between ecodynamic and thermodynamic?
There is very little overlap - if any - between thermodynamics and ecodynamics. Ecodynamics is a part of applied economics. It covers knowledge on monetary value, the usage of money and the money flow. It deals with labor, and capital. Ecodynamics has significant elements of sociology and psychology because it requires taking into account how people think and behave and what they value. Thermodynamics is a branch of physics concerned with heat and temperature and their relation to energy and work. Thermodynamics, especially statistical thermodynamics, is based on the idea of randomness and probabilities with no intelligent intervention. One way you could look at it is that Ecodynamics is how people behave with their resources while Thermodynamics is how resources behave in the absence of people.
What is ratio of real state?
A ratio requires two, or more, quantities. There is only one mentioned in the question.
do u know Vitamins-Protective foods?
Vitamins are a group of nutrients that our body requires in small quantities.
Whats the product of 13579?
The "product" is a concept which requires two quantities. You have only one 13579, in the question.
Can we have physical quantities which have magnitude and direction but are not vectors if yes how?
yes we can have. for eg electric current, pressure etc though these quantities have both magnitude and direction their directions are not necessary to define them and vectors are those quantities which has magnitude and requires direction to be defined " quantities having both magnitude and direction is a vector" is not a corrrect definition ofa vector
How does the 2nd law of thermodynamics make evolution impossible?
The second law does NOT make evolution impossible. It just requires that as evolution takes place that there be an increase in entropy of the universe as a whole.
What is the difference between a whole number a?
A question about "the difference between" requires two objects!
What is the difference between vector and scalar quantities?
Vector quantity is a quantity characterized by magnitude and direction.Whereas,Scalar quantity is a quantity that does not depend on direction.
Why can't electric suppliers use electric motors to spin the generators?
If you are suggesting a "perpetual motion" scenerio, it would violate the first or second laws of thermodynamics. Many inventors dream of perpetual motion machines, but they are an impossible dream according to the laws of thermodynamics. The second law of thermodynamics says that an engine or process of any type must always have an efficiency of less than 100%. A perpetual motion machine that uses a generator to power the motor that runs the generator requires both the generator and motor to operate with 100% efficiency. This type of perpetual motion machine does not violate the first law of thermodynamics, but violates the second law of thermodynamics. It is a perpetual motion machine of the second kind because it violates the second law of thermodynamics. Not even the cleverest engineer or inventor can build a perpetual motion machine because it would violate either the first or second law of thermodynamics, which are fundamental laws of physics.
Is hydroelectric energy easy to collect or mine?
Hydroelectric energy is created by utilizing falling water. For large quantities it requires a dam and big generators.
Is Rubber good for you to eat?
Rubber contains nothing that the human body requires, so no - it is not good. In small quantities it will probably do no harm, but it shouldn't be eaten.
What are the difference cellular respiration and respiration?
Oxygen is the difference! Cellular respiration requires oxygen, while cellular fermentation does not.
