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

Author Question: It is important to the HVACR technician to understand the changes of state of matter because: A) ... (Read 61 times)

wenmo

  • Hero Member
  • *****
  • Posts: 540
on: Jul 24, 2018
It is important to the HVACR technician to understand the changes of state of matter because:
 
  A) The refrigerant recovery process requires a technician to know which state the matter is in to ensure that only like refrigerants are put into a recovery container.
  B) Technicians are required to mix refrigerants to attain proper pressures and temperatures when charging refrigeration systems.
  C) NATE certification exams require a good understanding of the periodic table of elements.
  D) The cooling and heating process requires a change of state of matter in some form.

Question 2

Properties of matter that determine how chemicals react to one another:
 
  A) Are known as physical properties of matter. B) Are tested in pressures above atmospheric.
  C) Are known as chemical properties of matter. D) Are tested in pressures below atmospheric.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Brenm

  • Sr. Member
  • ****
  • Posts: 359
Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

C


wenmo

  • Member
  • Posts: 540
Reply 2 on: Jul 24, 2018
Thanks for the timely response, appreciate it

ecabral0

  • Member
  • Posts: 310
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Important Human Viral Table Important Human Viral Table
Increasing access to care for teen mothers is important because they have a higher rate of pregnancy ... Increasing access to care for teen mothers is important because they have a higher rate of pregnancy ...
Every state has a two-letter abbreviation. Every state has a two-letter abbreviation.
Given the parent function f(x)=log10(bottom exponent)x, state the equation of the function that Given the parent function f(x)=log10(bottom exponent)x, state the equation of the function that
Sketch the graph of each function using transformations. State the domain and range. Sketch the graph of each function using transformations. State the domain and range.
Important Bonds in Biological Molecules Important Bonds in Biological Molecules
Video: Mechanisms of capillary exchange (transcytosis & bulk flow)

For a complete list of videos, visit our video library