« previous next »

Author Question: A compound decomposes by a first-order process. If 17.0 of the compound decomposes in 30 minutes, ... (Read 109 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?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

The process of urine formation. The process of urine formation.
The steps in the hearing process. (1) Sound waves enter the outer ear and travel through the ear ... The steps in the hearing process. (1) Sound waves enter the outer ear and travel through the ear ...
Research Methods: A Process of Inquiry Research Methods: A Process of Inquiry
Spinous process Spinous process
A compound of iron and sulfur crystallizes in a lattice pattern described as cubic closest ... A compound of iron and sulfur crystallizes in a lattice pattern described as cubic closest ...
Vascular events in the acute inflammatory process Vascular events in the acute inflammatory process
Video: Component of feedback systems & Communication and regulation of body systems

For a complete list of videos, visit our video library