1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ZanzabumX [31]
4 years ago
10

I think it's be but I'm not sure

Chemistry
1 answer:
Morgarella [4.7K]4 years ago
6 0
The correct answer is b
You might be interested in
In the reversible reaction: 2NO2 (g) ⇌ N2O4 (g) the formation of dinitrogen tetroxide releases heat and the formation of nitroge
xenn [34]

Answer: Option (B) is the correct answer.

Explanation:

According to Le Chatelier's principle, any disturbance causes in an equilibrium reaction will shift the equilibrium in a direction that will oppose the change.

For example, 2NO_{2}(g) \rightleftharpoons N_{2}O_{4}(g)

When we increase the temperature then the reaction will shift in a direction where there will be decrease in temperature.

This, means that the reaction will shift in the backward direction.

Thus, we can conclude that if the reaction is at equilibrium and the temperature increases, the equilibrium will shift so that there is more nitrogen dioxide.

7 0
3 years ago
Read 2 more answers
Which type of galaxy has a central bar of stars instead of a rounded core? A. spiral B. irregular C. elliptical D. barred spiral
Art [367]

the answer is D. Barred Spiral

8 0
3 years ago
A chemical engineer must calculate the maximum safe operating temperature of a high-pressure gas reaction vessel. The vessel is
Airida [17]

Answer:

the maximum safe operating temperature the engineer should recommend for this reaction is 616 °C  

Explanation:

Given the data in the question;

First we calculate the Volume of the steel cylinder;

V = πr²h

radius r = Diameter / 2 = 27 cm / 2 = 13.5 cm

height h = 32.4 cm

so we substitute

V = π × ( 13.5 cm )² × 32.4 cm

V  = π × 182.25 cm × 32.4 cm

V = 18550.79 cm³  

V = 18.551 L

given that; maximum safe pressure P = 3.10 MPa = 30.5946 atm

vessel contains 0.218kg or 218 gram of carbon monoxide gas

molar mass of carbon monoxide gas is 28.010 g/mol

so

moles of carbon monoxide gas n = 218 gram /  28.010 g/mol = 7.7829 mol

we know that;

PV = nRT

solve for T

T = PV / nR

we know that gas constant R = 0.0820574 L•atm•mol⁻¹ K⁻¹

so we substitute

T = ( 30.5946 × 18.551 ) / ( 7.7829 × 0.082 )

T = 567.5604 / 0.6381978

T = 889.317387 K

T = ( 889.317387 - 273.15 ) °C

T = 616.167 ≈ 616 °C  { 3 significant digits }

Therefore, the maximum safe operating temperature the engineer should recommend for this reaction is 616 °C  

6 0
3 years ago
Which of these could be a physical change?
BigorU [14]

Answer:

C

Explanation:

A physical change is when the form of the matter is just altered. While a chemical change results from a chemical reaction. No reaction is happening during the mixing of the two colors [nothing is boiling, freezing, evaporating, melting ext.] , but after you mix them the end result does look different. That only because we changed the physical properties of it.

(B is not a physical change because the baking powder inside of the cake must under go a reaction that causes the cake to rise. )

7 0
3 years ago
Read 2 more answers
A beach has a supply of sand grains composed of calcite, ferromagnesian silicate minerals, and non-ferromagnesian silicate miner
bezimeni [28]
Ferromagnesian silicate minerals (i looked it up)
4 0
3 years ago
Other questions:
  • give an example of a model used in science that is larger then the real object and an example of a model that is smaller than th
    11·1 answer
  • A soccer player practices kicking the ball into the goal from halfway down the field the time it takes for the ball to get to th
    8·2 answers
  • The grater the viscosity of a liquid the slower it flows. true or false.
    14·2 answers
  • PLEASE ANSWER...........WILL MARK BRAINLIEST!!!!!!!
    10·1 answer
  • What is the mass of silver (107.87 g/mol) produced by the reaction of 3.00 moles of copper with 3.00 moles of silver nitrate?Cu
    6·1 answer
  • How are solutions and compounds similar?
    8·2 answers
  • 1. All of the following statements are true
    15·1 answer
  • Two balls are at the same time height and released at the same time. One ball is dropped and hits the ground 5 s later. The othe
    6·1 answer
  • how can knowledge of percent composition help you as a consumer ? how can you promote responsible consumerism ?​
    13·1 answer
  • an atom has 70 protons, 70 electrons, and 99 neutrons. what is the mass number? group of answer choices
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!