« previous next »

Author Question: A compound decomposes by a first-order process. If 17.0 of the compound decomposes in 30 minutes, ... (Read 29 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?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Metastasis Cancer Order Metastasis Cancer Order
The healing process of a bone. The healing process of a bone.
Particles measured, 1970 - 2008 and Trend in Organic Compound 1990 - 2007 Particles measured, 1970 - 2008 and Trend in Organic Compound 1990 - 2007
You ride a motor scooter 8 km in 10 minutes. Your speed is You ride a motor scooter 8 km in 10 minutes. Your speed is
Determine the mass of a nonvolatile, nonionizing compound that must be added to 4.76 kg of ... Determine the mass of a nonvolatile, nonionizing compound that must be added to 4.76 kg of ...
Compound Eyes Compound Eyes
Video: Natural Selection, Species Isolation and Real World Example

For a complete list of videos, visit our video library