(a)
The W in the process.
(a)
Answer to Problem 1P
Explanation of Solution
Given:
The work done by the student,
The decrease in the internal energy of the student,
Calculation:
Since the student does the work, hence the “ W ” of the process will be positive. Hence,
Conclusion:
The W in the processis
(b)
The
(b)
Answer to Problem 1P
Explanation of Solution
Given:
The work done by the student,
The decrease in the internal energy of the student,
Calculation:
Since the internal energy of the student decreases. Hence, it can be written as,
Conclusion:
The
(c)
The
(c)
Answer to Problem 1P
Explanation of Solution
Given:
The work done by the student,
The decrease in the internal energy of the student,
Formula used:
First law of
Where
Calculation:
Using given values in above equation, we get,
Conclusion:
The
Want to see more full solutions like this?
Chapter 15 Solutions
Physics, 11e WileyPLUS + Loose-leaf
- Consider these scenarios and state whether work is done by the system on the environment (SE) or by the environment on the system (ES): (a) opening a carbonated beverage; (b) filling a flat tire; (c) a sealed empty gas can expands on a hot day, bowing out the walls.arrow_forwardIf a gas is compressed isothermally, which of the following statements is true? (a) Energy is transferred into the gas by heat. (b) No work is done on the gas. (c) The temperature of the gas increases. (d) The internal energy of the gas remains constant. (e) None of those statements is true.arrow_forwardA multicylinder gasoline engine in an airplane, operating at 2.50 103 rev/min, takes in energy 7.89 103 J and exhausts 4.58 103 J for each revolution of the crankshaft. (a) How many liters of fuel does it consume in 1.00 h of operation if the heat of combustion of the fuel is equal to 4.03 107 J/L? (b) What is the mechanical power output of the engine? Ignore friction and express the answer in horsepower. (c) What is the torque exerted by the crankshaft on the load? (d) What power must the exhaust and cooling system transfer out of the engine?arrow_forward
- Find the work done in the quasi-static processes shown below. The states are given as (p, V) values for the points in the PV plane: 1 (3 atm, 4 L), 2 (3 atm, 6 L), 3 (5 atm, 4 L), 4 (2 atm, 6 L), 5 (4 atm, 2 L), 6 (5 atm, 5 L) and 7 (2 atm, 5 L).arrow_forwardOne mole of an ideal gas does 3 000 J of work on its surroundings as it expands isothermally to a final pressure of 1.00 atm and volume of 25.0 L. Determine (a) the initial volume and (b) the temperature of the gas.arrow_forward*42. o Compressed air can be pumped underground into huge caverns as a form of energy storage. The volume of a cavern is 5.6 × 10° m², and the pressure of the air in it is 7.7 X 10° Pa. Assume that air is a diatomic ideal gas whose internal energy U is given by U = {nRT. If one home uses 30.0 kW · h of energy per day, how many homes could this internal energy serve for one day?arrow_forward
- In moving out of a dormitory at the end of the semester, a student does 1.82 x 104 J of work. In the process, his internal energy decreases by 4.07 x 104 J.Determine each of the following quantities (including the algebraic sign):(a)W,(b)U(c)Q.arrow_forwardA(n) 3.3-kg block of aluminum is heated from 30°C to 70°C at atmospheric pressure. (a) Find the work done by the aluminum.? J(b) Find the amount of energy transferred to it by heat. ? J(c) Find the increase in its internal energy. ? Jarrow_forwardA system does 2.00 x 10° J of work while 6.20 x 10° J of heat transfer occurs to the environment. What is the change in internal energy (in J) of the system assuming no other changes (such as in temperature or by the addition of fuel)? (Include the sign of the value in your answer.)arrow_forward
- The pressure and volume of a gas are changed along the path ABCA. Using the data shown in the graph, determine the work done (including the algerbraic sign) in each segment of the path: (a) A to B, (b) B to C, and (c) C to A. (a) Number i (b) Number i (c) Number i Pressure, Pa 7.0 x 105 3.0 x 105 Units Units Units B 7 A 2.0 x 10-³ 5.0 x 10-³ Volume, m³ < C <arrow_forwardThe first law of thermodynamics states that the change AU in the internal energy of a system is given by AU = Q - W where Q is the heat, and W is the work. Both Q and W can be positive or negative numbers. Q is a positive number if and W is a positive number ifarrow_forwardBy visual inspection, order the PV diagrams shown in the figure below from the most negative work done on the system to the most positive work done on the system. О а, а, с, b О а, с, Ь, d O d, b, c, a O a, b, c, d P(10 Pa) P(10°PA) 3.00 3.00 2.00 2.00 A2 1.00 Az 1.00 V(n) V(m³) 1.00 2.00 3.00 1.00 2.00 3.00 (a) (b) P(10 Pa) P(10®Pa). 3.00 3.00 2.00 2.00- 1.00 1.00 V(m³) V(m³) 1.00 2.00 3.00 1.00 2.00 3.00 (c) (d) 4:36 PMarrow_forward
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning