Hwk6A_scanned_withFigs3

Hwk6A_scanned_withFigs3 - PHYS 153 Homework 6A Problem 1...

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

View Full Document Right Arrow Icon

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

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

Unformatted text preview: PHYS 153 Homework 6A Problem 1 The figure below shows a Carnot heat engine driving a Carnot refrigerator. (a) Determine Q 1 , Q 2 , Q 3 , and Q 4 . (b) Is Q 3 greater than, less than, or equal to Q 1 ? (c) Do these two devices, when operated together in this way, violate the second law? Explain. Problem 2 A heat engine uses a diatomic gas that follows the pV cycle in the figure below. (a) Determine the pressure, volume, and temperature at point 1. (b) Determine U th , W s , and Q for each of the three processes. Put your results in a table for easy reading. (c) How much work does this engine do per cycle and what is its thermal efficiency? Problem 3 A 0 . 0500 kg cube of ice at an initial temperature of- 15 C is placed in 0 . 600 kg of water at T = 45 . C in an insulated container of negligible mass. (a) Calculate the final temperature of the water once the ice has melted. (b) Calculate the change in entropy of the system....
View Full Document

Page1 / 2

Hwk6A_scanned_withFigs3 - PHYS 153 Homework 6A Problem 1...

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