This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: When a sample of water at 0.0C is cooled to 36.0C and freezes in the process, 935,000 kJ of heat is ... (Read 114 times)

debasdf

  • Hero Member
  • *****
  • Posts: 570
on: Jul 29, 2018
When a sample of water at 0.0C is cooled to 36.0C and freezes in the process, 935,000 kJ of heat is liberated.
 
  What is the mass of this sample of water? For water LF = 334,000 J/kg, LV = 2.256  106 J/kg, and the specific heat of ice is 2050 J/kg  C.
  A) 2290 kg
  B) 1145 kg
  C) 2800 kg
  D) 12,700 kg

Question 2

A real (non-Carnot) heat engine, operating between heat reservoirs at temperatures of 450 K and 270 K, performs 3.3 kJ of net work, and rejects 8.2 kJ of heat in a single cycle.
 
  (a) What is the thermal efficiency of this heat engine?
  (b) What is the maximum efficiency it could possibly have?
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

scikid

  • Sr. Member
  • ****
  • Posts: 300
Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 39% of students answer this correctly


debasdf

  • Member
  • Posts: 570
Reply 2 on: Jul 29, 2018
:D TYSM

scikid

  • Member
  • Posts: 300
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Rinne test: A. Place the base of the tuning fork on the mastoid process. B. Place tuning fork in fro Rinne test: A. Place the base of the tuning fork on the mastoid process. B. Place tuning fork in fro
A Summary of the Star Formation Process A Summary of the Star Formation Process
A gasoline testing kit, including an insulated container where water at 100°F is used to heat a ... A gasoline testing kit, including an insulated container where water at 100°F is used to heat a ...
(a) A turbidometry detector measures laser light directly across from the light source. The sample, ... (a) A turbidometry detector measures laser light directly across from the light source. The sample, ...
How water moves through a tree How water moves through a tree
Access to clean drinking water is just as important as adequate nutrition for human health Access to clean drinking water is just as important as adequate nutrition for human health
Video: Introduction to Diabetes

For a complete list of videos, visit our video library