Three different processes act on a system. (a) In process A, 42 J of work are done on the system and 77 J of heat are added to the system. Find the change in the system’s internal energy. (b) In process B, the system does 42 J of work and 77 J of heat are added to the system. What is the change in the system’s internal energy? (c) In process C, the system’s internal energy decreases by 120 J while the system performs 120 J of work on its surroundings. How much heat was added to the system?
Three different processes act on a system. (a) In process A, 42 J of work are done on the system and 77 J of heat are added to the system. Find the change in the system’s internal energy. (b) In process B, the system does 42 J of work and 77 J of heat are added to the system. What is the change in the system’s internal energy? (c) In process C, the system’s internal energy decreases by 120 J while the system performs 120 J of work on its surroundings. How much heat was added to the system?
Three different processes act on a system. (a) In process A, 42 J of work are done on the system and 77 J of heat are added to the system. Find the change in the system’s internal energy. (b) In process B, the system does 42 J of work and 77 J of heat are added to the system. What is the change in the system’s internal energy? (c) In process C, the system’s internal energy decreases by 120 J while the system performs 120 J of work on its surroundings. How much heat was added to the system?
Two distinct systems have the same amount of stored internal energy. Assume 500 J are added by heat to the first system, and 300 J are added by heat to the second system. What will be the change in internal energy of the first system if it does 200 J of work? How much work will the second system have to do in order to have the same internal energy?
The internal energy of a gaseous system is initially 63 J. A total of 71 J of energy is added to the system as heat while the system does 59 J of work. The system does not undergo a change of state.
What is the system’s final internal energy?
Does the system’s temperature increase, decrease, or stay unchanged?
A student in a chemistry lab class prepares to do a test of Boyles Law. The student presses down rapidly on the piston of a gas filled syringe and causes adiabatic compression of the gas. The student did 75 J of work on the gas.
What was the change in internal energy of the gas?
Did the temperature of the gas increase, decrease, or not change?
Two distinct systems have the same amount of stored internal energy. Five hundred joules are added by heat to the first system, and 300 J are added by heat to the second system. What will be the change in internal energy of the first system if it does 200 J of work? How much work will the second system have to do in order to have the same internal energy?
Chapter 18 Solutions
Modified Mastering Physics with Pearson eText -- Access Card -- for Physics (18-Weeks)
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