« previous next »

Author Question: A compound decomposes by a first-order process. If 17.0 of the compound decomposes in 30 minutes, ... (Read 85 times)

justinmsk

  • Hero Member
  • *****
  • Posts: 524
on: Aug 27, 2018
A compound decomposes by a first-order process. If 17.0 of the compound decomposes in 30 minutes, the half-life of the compound is ________.
 
  A) 112 minutes
  B) 12 minutes
  C) 8 minutes
  D) 223 minutes
  E) 56 minutes

Question 2

Which one of the following processes produces a decrease of the entropy of the system?
 
  A) dissolving sodium chloride in water
  B) sublimation of naphthalene
  C) dissolving oxygen in water
  D) boiling of alcohol
  E) explosion of nitroglycerine


paavo

  • Sr. Member
  • ****
  • Posts: 301
Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

justinmsk

  • Hero Member
  • *****
  • Posts: 524
Reply #2 on: Aug 27, 2018
Both answers were spot on, thank you once again


paavo

  • Sr. Member
  • ****
  • Posts: 301
Reply #3 on: Aug 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

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.

The process of clot formation. The process of clot formation.
Children with disabilities used to be sent to special schools. In a process called mainstreaming or ... Children with disabilities used to be sent to special schools. In a process called mainstreaming or ...
Basic process of metabolic profiling Basic process of metabolic profiling
Me Studying and 5 Minutes Later Me Studying and 5 Minutes Later
Use a compound angle addition formula to determine an equivalent trig expression for cos(x + ... Use a compound angle addition formula to determine an equivalent trig expression for cos(x + ...
Nursing Care Plan Process: Client with High Blood Lipid Levels Nursing Care Plan Process: Client with High Blood Lipid Levels
Video: Non-specific disease resistance mechanisms & Skin's defense barriers

For a complete list of videos, visit our video library