The units of efficiency (e) are O Joules/second O It's unitless N-m kg m-s" O O O O
Q: One of the foundations of thermodynamics is the "Conservation of Mass." O True O False
A: False, Conservation of energy is fundamental of thermodynamics not the conservation of mass
Q: Consider the following figure. P(MPa) 10 8 V (m³) 12 6 8 10 (a) Determine the work done on a fluid…
A: (a) The work done on the fluid that expands from i to f by the area under the curve with volume…
Q: Q= 50232 . (b) What is the change in entropy due to this heat transfer? AS = 10.95 total J/K (C) How…
A: Given data: The mass of water is: m =1.2 kg The specific heat is: c =4186 J/kg. oC The temperature…
Q: The second law of thermodynamics states that the entropy of an isolated system not in equilibrium…
A: The objective of the question is to verify the statement about the second law of thermodynamics and…
Q: (a) Determine the work done on a fluid that expands from I to f as indicated in Figure to the right.…
A: A pressure vs volume graph.Note:Find:(a) Work-done on fluid that expands from to (b) Work-done on…
Q: Which of the following would result to an increase in the Carnot efficiency of a heat engine? O The…
A: Heat transfers from warm to cold place ideally. Heat engines transfers heat from cool to warm…
Q: A balloon is inflated inside of a container pressured to 1 atm. The container is then suddenly…
A: Given :- A balloon is inflated inside of a container pressured to 1 atm. The container is then…
Q: What must occur in cases where in entropy decreases?
A: The entropy is defined to be a measure of randomness. In other words, it is the amount of energy…
Q: The latent heat of vaporization of water is given approximately by L₁ = -2,400Tc + 2,500,000, where…
A: Solution: We have given that The latent heat of vaporization of water Lv=-2400Tc + 25,00,000 where…
Q: A(n) 88-kg sprinter accelerates from rest to a speed of 11.0 m/s in 4.2 s. (a) Calculate the…
A: Mass(m)=88 kg Initial speed=0 m/s Final speed=11 m/s Time taken=4.2 s
Q: A 4.00 kg block of ice at 0.00 C falls into the ocean and melts. The average temperature of the…
A: The change in entropy of the world is 60 J/K
Q: Does the entropy of a system always increase with an increase in temperature?
A: Not always. Entropy of system increases when heat is transferred. And sometimes temperature can be…
Q: If energy is always conserved, never created or destroyed, then why do most of the machines in our…
A: SOlution: To explain If energy is always conserved, never created or destroyed, then why do most of…
Q: A truck mass of m=1210kg drives up an incline at a constant speed of v = 12.7 m/s. The forces of air…
A:
Q: As a gasoline engine is running, an amount of gasoline containing 13,600 J of chemical potential…
A: Given: Input energy, E=13600 J Work done, W=3400 J
Q: This problem is asking for Joules for part (a) and m/s for part (b).
A: Both of the answers given in the previously solved problems are correct and the answer to part (a)…
Q: Physical systems work in a “one-way street” – the amount of information we have about the state…
A: Energy : It is the ability of an object to do work. There are different types of energy. Example:…
Q: The heat machine receives 1200 J of heat from high-temperature heat source and re lease the heat of…
A:
Q: Efficiency of reversible engine is maximum. Why?
A:
Q: Pressure B C ЗР Po = 1.0 atm Vo = 100 L Po D Volume Vo 3Vo
A: The process AB is a constant volume process.
Q: O Entropy O Synergy
A: The word synergy mean is working together. This mean that when two or more agents or forces act then…
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- #8. (14) What is the change in entropy of 570 g of ice as it melts into water?The pressure change of a balloon varies according to the P=CV*1/3 equation (C = 100 kPa m and n= -1/3) Since the balloon is inflated with air at a temperature of 25 ° C from 1 m3 volume to 3 m3 volume at 25 ° C , (R air = 0.287 kJ / kg 'K) a) Find the mass (kg) of air in the final state. b) Find the work (kj) done by air. c) Show the work done on the P-v diagram.the entropy of the universe is continually decreasing constant continually increasing the same as the energy E zero
- (III) A typical compact car experiences a total drag force of about 350 N at 55 mi/h. If this car gets 32 miles per gallon of gasoline at this speed, and a liter of gasoline (1 gal = 3.8 L) releases about 3.2 × 107 J when burned, what is the car's efficiency?The lower the mechanical efficiency, the more work is being done by non-conservative forces - usually frictional. O True O FalseCalculate the entropy of rolling a die three times such that the sum of numbers for the first two observations is divisible by the number obtained third time. (a) 6.47 x103 J/K (b) 2.03 m -kg-s.K (c) 2.81 m² - kg -s. K (d) 2.81x10-3 J/K