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
stepladder [879]
2 years ago
14

A certain first-order reaction has a half-life of 25.2 s at 20°C. What is the value of the rate constant k at 60°C if the activa

tion energy, Ea=80 kJ mol-1?
Chemistry
1 answer:
olasank [31]2 years ago
3 0

Answer:

hi

Explanation:

You might be interested in
Potrzebuje pomocy pilnie!! daję naj
Ymorist [56]

I dont speacka you languadge

8 0
3 years ago
A gas occupies a volume of 60 L at a temperature of 0.5 K. What will the volume be at 4 K?
Flauer [41]

Answer:

480 L

Explanation:

In order to solve this question, you should be familiar with gas laws. (I will attach a picture showing all of them under my answer.) In this question in particular, however, we only need Charles's Law because we're dealing with temperature and volume.

As we can see, Charles's Law is:

\frac{V_{1} }{T_{1} } = \frac{V_{2} }{T_{2} }

or, initial volume over initial temperature equals final volume over final temperature.

In this question, 60 L is our <u>initial volume,</u> and 0.5 K is our <u>initial temperature</u> (K being Kelvin). We are only given 4 K as our <u>final temperature</u>. We are asked to solve for the <u>final volume</u>. Let's set up the equation and solve for V_{2}:

--------------------------------------------------------------------------------------------------------------

(60) / (0.5) = V_{2} / (4)

↓

120 = V_{2} / 4

×4           ×4

↓

V_{2} = 480 L

--------------------------------------------------------------------------------------------------------------

There's our answer! Feel free to comment if you have any questions about my answer :)

3 0
3 years ago
Please help, thanks!
Anastasy [175]
You need to use the formula--> P1V1= P2V2 (Boyles's law)

P1= 14 bar
V1= 312 mL
P2= ?
V2= 652 mL

now we plug the values into the formula.

(14 x 312) = (P2x 652)

P2= (14 x 312)/ 652= <span>6.70 bar</span>
5 0
3 years ago
Studying energy involves determining the amount of energy an object has. This energy can be kinetic or potential, or it could be
Flura [38]

Answer: the answer is a

Explanation:

3 0
3 years ago
According to the principle of the conservation of mass the mass of the sodium sulfate was the following PLS HELP I NEED TO TURN
Annette [7]

Answer:

Explanation:

The Law of Conservation of Mass is defined and explained using examples of reacting mass calculations using the law are fully explained with worked out examples using the balanced symbol equation. The method involves reacting masses deduced from the balanced symbol equation.

5 0
3 years ago
Other questions:
  • What is one way that cactus and camel are similar
    6·2 answers
  • Cryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation f
    7·1 answer
  • Explain in complete sentences how a convection current is created
    15·2 answers
  • Sea arches and sea stacks provide evidence of weathering and erosion. In three to five sentences, explain the roles weathering a
    11·1 answer
  • What two factors affect the pressure in a solid
    9·1 answer
  • A compound is analyzed and found to be 50% sulfur and 50% oxygen. If the total amount of the sulfur oxide is 12.5 g, how many gr
    9·1 answer
  • 9.710 x 10-8<br> grams of Chy are how many molecules?<br> Use Cl = 35.45 g/mole.
    9·1 answer
  • Where was Sodium first discovered? <br> Location:<br> No copy-pasting
    8·2 answers
  • why is sodium chloride solution a good conductor of electricity but does not have any effect on litmus paper?​
    6·1 answer
  • Which of the following statements is one
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!