« previous next »

Author Question: A piece of metal at 80C is placed in 1.2 L of water at 72C. The system is thermally isolated and ... (Read 168 times)

jake

  • Hero Member
  • *****
  • Posts: 538
on: Jul 27, 2018
A piece of metal at 80C is placed in 1.2 L of water at 72C. The system is thermally isolated and reaches a final temperature of 75C. Estimate the approximate change in entropy for this process.
 
  What will be an ideal response?

Question 2

When a dielectric material is introduced between the plates of a parallel plate capacitor the capacitance increases by a factor of 4. What is the dielectric constant of the material introduced between the plates?
 
  A) 0.4
  B) 1/4
  C) 2
  D) 4
  E) None of the other choices is correct.


welcom1000

  • Sr. Member
  • ****
  • Posts: 298
Reply #1 on: Jul 27, 2018
Answer to Question 1

0.2 cal/K

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Detection of Hypovolemia by the Kidney and the Renin–Angiotensin System Detection of Hypovolemia by the Kidney and the Renin–Angiotensin System
Disitive Time For Water Disitive Time For Water
Autonomic innervation of the male reproductive system Autonomic innervation of the male reproductive system
Infections in the Digestive System Infections in the Digestive System
A membrane permeable to water but not to glucose (C6H12O6) separates two aqueous solutions. ... A membrane permeable to water but not to glucose (C6H12O6) separates two aqueous solutions. ...
Cardiac conduction system Cardiac conduction system
Video: Virtual Enzyme Kinetics & Lineweaver Burk Plot

For a complete list of videos, visit our video library