The first law of thermodynamics is a statement that energy is conserved. If the work out...
Homework Answers
By first law of thermodynamics
dQ = dU + dW
If dW is greater than dQ than dU will be negative.
It means internal energy will decrease.
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The
first law of thermodynamics is a statement that energy is
conserved. If the work out...
The first law of thermodynamics is usually written as Q=W+?U. You need to look at the signs carefully; some other disc...
The first law of thermodynamics is usually written as Q=W+?U. You need to look at the signs carefully; some other disciplines (chemistry, for example) may use other signs, which implies other definitions of these quantities. 1-Which physical law underlies the first law of thermodynamics? -conservation of matter -increase in entropy -conservation of energy -conservation of work 2- The quantity Q is the __________ that is added to the system. -heat - work -entropy -internal energy 3-The quantity W in the...
Can someone please help out with these questions? Thanks. 1. State the First Law of Thermodynamics...
Can
someone please help out with these questions? Thanks.
1. State the First Law of Thermodynamics 2. What are the sign conventions for the heat O and the work W . How is the First Law related to conservation of energy? 4. Define internal energy 5. Does internal energy depend on path, in other words how a system got to the state its in? 6. How does the First Law apply to weight gain? . What is an irreversible process?...
Name Date First Law of Thermodynamics Calculations: Apply the First Law of Thermodynas following problems. 1....
Name Date First Law of Thermodynamics Calculations: Apply the First Law of Thermodynas following problems. 1. 2260 joules of heat is added to a svatem and 1500 2 joules of work is done by the system. What is the change in internal energy of the system? 3500 J of heat is added to a system and 500 is done by the system. What is the change in it energy of the system? 3. 4200 joules of work is done on...
10. According to the first law of thermodynamics, the energy of the universe is constant. Does...
10. According to the first law of thermodynamics, the energy of the universe is constant. Does this mean that AE is always equal to zero? a. Yes, AE = 0 at all times, which is why 9 = -W. b. No, AE does not always equal zero, but this is only due to factors like friction and heat. c. NO, AE does not always equal zero because it refers to the system's internal energy, which is affected by heat and...
a statement of the first law of thermodynamics is that a. in a spontaneous process, the...
a statement of the first law of thermodynamics is that a. in a spontaneous process, the entropy of the universe increases b. there is no disorder in a perfect crystal at 0 k. c. the total energy of the universe is constant. d. the totla energy of the universe is constant. e. mass and energy are conserved in all chemical reactions can only pick one answer i think it is E
The first law of thermodynamics states heat added to a system results in work done and/or...
The first law of thermodynamics states heat added to a system results in work done and/or change in interanal energy of the system. A. True B. False
The first law of thermodynamics states that energy can neither be created nor destroyed. How then...
The first law of thermodynamics states that energy can neither be created nor destroyed. How then is it possible for ∆E to be anything other than zero? In other words, what do we mean when we call a physical scenario “non-conservative” if energy must, by nature, be conserved?
Write out the conservation of energy as expressed in the first law of thermodynamics. What does...
Write out the conservation of energy as expressed in the first law of thermodynamics. What does each term mean?
Which statement can be attributed to the 2nd Law of Thermodynamics? a For any real process,...
Which statement can be attributed to the 2nd Law of Thermodynamics? a For any real process, energy is conserved. b For any real process, entropy is conserved. c Energy flow has a direction. d Energy has a magnitude. Entropy change across a pump used in a certain practical application was found out to have a negative value. Which of the below statement is true? a The entropy generation across the pump is negative. b There is heat loss from the...
AU Dositive when ( 8. In the first law of thermodynamics on the environment by the...
AU Dositive when ( 8. In the first law of thermodynamics on the environment by the system. a. the work is being done on the system by the environment b. the work is being done c. the work is being done on the environment by the system, and the temperature of the system goes up. d. the work is being done on the system by the environment, and the temperature of the system goes up
AU Dositive when ( 8....
Can
someone please help out with these questions? Thanks.
1. State the First Law of Thermodynamics 2. What are the sign conventions for the heat O and the work W . How is the First Law related to conservation of energy? 4. Define internal energy 5. Does internal energy depend on path, in other words how a system got to the state its in? 6. How does the First Law apply to weight gain? . What is an irreversible process?...
Name Date First Law of Thermodynamics Calculations: Apply the First Law of Thermodynas following problems. 1. 2260 joules of heat is added to a svatem and 1500 2 joules of work is done by the system. What is the change in internal energy of the system? 3500 J of heat is added to a system and 500 is done by the system. What is the change in it energy of the system? 3. 4200 joules of work is done on...
10. According to the first law of thermodynamics, the energy of the universe is constant. Does this mean that AE is always equal to zero? a. Yes, AE = 0 at all times, which is why 9 = -W. b. No, AE does not always equal zero, but this is only due to factors like friction and heat. c. NO, AE does not always equal zero because it refers to the system's internal energy, which is affected by heat and...
AU Dositive when ( 8. In the first law of thermodynamics on the environment by the system. a. the work is being done on the system by the environment b. the work is being done c. the work is being done on the environment by the system, and the temperature of the system goes up. d. the work is being done on the system by the environment, and the temperature of the system goes up
AU Dositive when ( 8....
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