PHYS102Quiz3 - PRACTICE QUIZ 3 1. Of the following heat...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
179 P RACTICE Q UIZ 3 1. Of the following heat engines, which has the highest efficiency? a. Hero’s engine b. a Carnot engine c. a car’s gasoline engine d. a truck’s diesel engine b 2. An adiabatic expansion refers to the fact that: a. no heat is transferred between a system and its surroundings. b. the pressure remains constant. c. the temperature remains constant. d. the volume remains constant. a 3. A gas expands at constant temperature from an initial volume of 0.040 m 3 and an initial pressure of 210 kPa until its pressure drops to 135 kPa. How much work is done by the system? a. 3.7 kJ b. 4.1 kJ c. 5.6 kJ d. 7.9 kJ a 4. What is the change in entropy ( S ) when one mole of silver (108 g) is completely melted at 961°C? (The heat of fusion of silver is 8.82 10 4 J/kg.) a. 5.53 J/K b. 7.72 J/K c. 9.91 J/K d. 12.10 J/K b 5. The efficiency of a Carnot engine operating between 100°C and 0°C is most nearly: a. 7%. b. 15%.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/07/2011 for the course PHYS 102 taught by Professor Armenn.kocharian during the Winter '11 term at California State University Los Angeles .

Page1 / 2

PHYS102Quiz3 - PRACTICE QUIZ 3 1. Of the following heat...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online