Carnot efficiency - Samenvattingen, Aantekeningen en Examens

Question 1 Correct 6.00 points out of 6.00 What is the internal energy of 7.91 x 1022 gas molecules at a temperature of 300 K? Select one: a. 164 J b. 109 J c. 44.2 J d. 492 J Question 2 Correct 6.00 points out of 6.00 Because the energy in SHM alternates between kinetic and potential, at some position x, the kinetic energy must be equal to the potential energy. For the general case, an object undergoing SHM with an amplitude A, which of the following is this position? Select on...

TEST BANK accompanying the book thermodynamics - fundamentals and engineering applications P. Colonna Delft University of Technology, The Netherlands     PREFACE 4 SAMPLE EXAM 1 5 Exercise 1 (true/false questions) 5 Exercise 2 5 Exercise 3 6 Exercise 4 6 Exercise 5 6 Exercise 6 7 SAMPLE EXAM 2 8 Exercise 1 (true/false questions, with justification) 8 Exercise 2 8 Exercise 3 9 Exercise 4 9 Exercise 5 10 Exercise 6 11 SAMPLE EXAM 3 12 Exercise 1 (true/false questi...

Thermodynamics - ANSWER-The study of heat and transformation into mechanical energy 1st Law of Thermodynamics - ANSWER-States that whenever heat is added to a system, it transforms to an equal amount of some other form of energy Internal energy - ANSWER-The total microscopic energy of an object, which includes its atomic and molecular translational and rotational kinetic energies, vibrational energy, and the energy stored in molecular bonds Adiabatic process - ANSWER-When a gas is compr...

Chapter 3 Fossil Fuel Resources and Use 3.1 A person's primary energy needs are supplied exclusively by burning oil (with an energy content of 3.85 × 107 J/L). If a person's average power consumption is 12 kW, how long would it take that person to use one barrel of oil (158.97 liters)? Solution The power 12 kW is the same as energy consumed at a rate of 12,000 J/s. Thus the amount of oil required per second is (12,000 J/s)/(3.85 × 107 J/L) = 3.12 × 10–4 L/s. Thus to consume...

Conceptual Physics Chapter 18 Test Questions with Correct Answers The lowest temperature possible in nature is A) 0 degrees C. B) -273 degrees C. C) 4 K. - Answer-B) -273 degrees C. A volume of air has a temperature of 0 degrees C. An equal volume of air that is twice as hot has a temperature of A) 0 degrees C B) 64 degrees C C) 100 degrees C D) 273 degrees C E) none of the above choices are correct - Answer-D) 273 degrees C To wholly convert a given amount of heat energy into me...

Conceptual Physics Chapter 18 Test Questions with Correct Answers The lowest temperature possible in nature is A) 0 degrees C. B) -273 degrees C. C) 4 K. - Answer-B) -273 degrees C. A volume of air has a temperature of 0 degrees C. An equal volume of air that is twice as hot has a temperature of A) 0 degrees C B) 64 degrees C C) 100 degrees C D) 273 degrees C E) none of the above choices are correct - Answer-D) 273 degrees C To wholly convert a given amount of heat energy into me...

Conceptual Physics Chapter 18 Test Questions with Correct Answers The lowest temperature possible in nature is A) 0 degrees C. B) -273 degrees C. C) 4 K. - Answer-B) -273 degrees C. A volume of air has a temperature of 0 degrees C. An equal volume of air that is twice as hot has a temperature of A) 0 degrees C B) 64 degrees C C) 100 degrees C D) 273 degrees C E) none of the above choices are correct - Answer-D) 273 degrees C To wholly convert a given amount of heat energy into me...

BTEC Applied Science Unit 5 physicsWhat are the standard units of mass, length and time? - Correct answer-Kilograms, metres and seconds What are the SI prefixes for 10^3, 10^6 and 10^9? - Correct answer-kilo, mega, giga What are the SI prefixes for 10^-3, 10^-6 and 10^-9? - Correct answer-milli, micro, nano What is work done? - Correct answer-The energy transferred in moving something What is power? - Correct answer-the rate at which work is done What happens to a gas when it is compressed...

Phy 102 Chapter 12 Exam Questions and Correct Answers Latest Update 2024 ( Graded A+) A 4-mol ideal gas system undergoes an adiabatic process where it expands and does 20 J of work on its environment. What is its change in internal energy? a. 5 J b. 20 J c. zero d. +20 J - Answers b. 20 J In a certain thermodynamic process, 20 cal of heat are removed from a system and 30 cal of work are done on the system. The internal energy of the system . . . a. increases by 50 cal b. decreases by ...

Asked to find volumetric flow rate of gas - what equation could you use? Correct Answer: PV=mRT - Pv=RT - V(rate) = m(rate)*R*T/P====remember v=V(rate)/m(rate) How do you calculate feet of air from inches of H20? Correct Answer: Convert inches of H20 to feet of H20 and then multiply by (density water/density air) - counterintuitive. What is a good way of manipulating the equation for velocity through a pitot tube in handbook? Correct Answer: v=(2g(p0-p1/y))^1/2 can be changed to v= (2gh)1...