What is the change in internal energy of a system which does 0.42 J of work while 8.87 J of heat transfer occurs into the system, and 8.87 J of heat transfer occurs to the environment? Give your answer in joules.
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- A model steam engine of 1.00 kg mass pulls eight cars of 1.00 kg mass each. The cars start at rest and reach a velocity of6.20 m/s in a time of 3.00 s while moving a distance of 4.50 m. During that time, the net heat input is 128 J. What is the change in the internal energy of the engine? In Joules1. Suppose a woman does 500 J of work and -9400 J of heat transfer occurs into the environment in the process. (a) What is the decrease in her internal energy, assuming no change in temperature or consumption of food? (That is, there is no other energy transfer.) ΔΕint ✓ J (b) The internal energy is stored energy due to food intake. Treating the change in internal energy as the input energy and work done as output, what is her efficiency? Efficiency, Eff: % (c) What physics law did you use in this problem? Zeroth Law of Thermodynamics First Law of Thermodynamics Second Law of ThermodynamicsAir is compressed in an adiabatic compressor reversibly from 60.0 kPa and 20°C to 750 kPa. What percentage of work input is transferred to the air as thermal energy or heat? (Round the final answer to three decimal places.) 0% of work input is transferred to the air as thermal energy or heat.
- In a game of football outdoors on a cold day, a player will begin to feel exhausted after using approximately 8.0 x 10 J of internal energy. (a) One player, dressed too lightly for the weather, has to leave the game after losing 7.0 x 10° Jof heat. How much work has he done? (b) Another player, wearing clothes that offer better protection against heat loss, is able to remain in the game long enough to do 2.3x 105 J of work. What is the magnitude of the heat that he has lost? (a) Number Units (b) Number Units <.A system undergoes a two-step process. In the first step, the internal energy of the system increases by 230 J when 166 J of work is done on the system. In the second step, the internal energy of the system increases by 115 J when 191 J of work is done on the system. For the overall process, find the heat added to the system (including sign).A thermodynamical system performs work and at the time exchanges energy to the outside environment ther is more additional help or changes in terms of fuel supply or an increase in the temp of the system the work done by the system on the environment is 1.5 x 10^ 6 while the systems internal energy is increased by 5.5 x 10^ 6 J how much heat is exchanged between the system and the environment? Pls indicate the direction of the heat flow?
- A gas at 0.75 atm with a volume of 21.7 L undergoes a quasi-static isobaric expansion. If during this process the gas does 457 J of work and its internal energy increases by 73 J, how much heat does the gas absorb?A closed gas system has 682 J of heat gain from the environment and 439 J of work is done on the gas causing it to be compressed. Calculate the change in internal energy of the gas.-What is the change in internal energy of a system which does 3.5 x 10^5 J of work while 3.00×10^6 J of heat transfer occurs into the system, and 8.00×10^6 J of heat transfer occurs to the environment?
- 800 J of work are done BY a system in a process that decreases the thermal energy of the system by 50 J. How much heat is transferred TO the system during this process? If the system gains heat, answer with a positive number. If the system loses heat, answer with a negative number. (in J) -750 750 -850 -50 0The water in a deep underground well is used as the cold resevoir of a Carnot heat pump that maintains the temperature of a house at 303 K. To deposit 13000 J of heat in the house, the heat pump requires 716 J of work. Determine the temperature of the well water.What is the change in internal energy of a system that takes in 4.53 x 106 ) of heat, and does 4.50 x 105 J of work while dissipating 8.67 x 106 J of heat?