![nicollexo21](/avatars/18947.jpg)
nicollexo21
23.10.2021 •
Chemistry
If 84.5 mol of an ideal gas occupies 21.5 L at 305 K, what is the pressure of the gas? pressure: atm
Solved
Show answers
More tips
- F Food and Cooking What can and cannot be eaten during Lent?...
- F Food and Cooking How to Find Your Zip Code?...
- W Work and Career Can Skill Alone Make You a Professional?...
- C Computers and Internet How to Top Up Your Skype Account Without Losing Money?...
- P Philosophy Unidentified Flying Object - What is the Nature of this Phenomenon?...
- F Family and Home Protect Your Home or Apartment from Pesky Ants...
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
Answers on questions: Chemistry
- C Chemistry The half-life of radioactive Atoms Refers to A. The time required for half the Atoms in a sample to the decay. B. The number of atoms in a sample that are radioactive. C. Half...
- E English We walked up to the door and quickly rang the bell. who knew what was in the store ? only time would tell . what os the stanza ryhme scheme? a.abab b.aabb c.abac d.abcb...
- M Mathematics Solve the equation X-5 = - 4x-5 .. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The solution is (Simplify your answer.)...
- E English Which of the following statements is false? a. plot prefers to the chain events that take place in the story. b. narration is the telling of the story from an identifiable...
Ответ:
98.367 atm
Explanation:
For this, you must use the equation PV=nRT. Since you are looking for P, rearrange the equation so that P= nRT/V.
Now collect the information you have:
n (mol) = 84.5
R (ideal gas constant to find atm not every case) = .08206
T (temperature) = 305 K (always convert to kelvin)
V (volume in liters) = 21.5
Now Use P= (85.5 mol)×(.08206)×(305 K)/(21.5) to get your answer in atm
Ответ:
-8024.832 J
Explanation:
The amount of heat energy lost or released, Q, can be calculated thus;
Q = m × c × ∆T
Where;
Q = amount of heat lost (J)
m = mass of substance (g)
c = specific heat capacity (J/g°C)
∆T = change in temperature (°C)
According to this question,
Q = ?
m = 24.3 g
c of Gold = 0.129 J/g°C
∆T = 20°C - 2580.0°C = -2560°C
Using Q = m × c × ∆T
Q = 24.3 × 0.129 × -2560°C
Q = -8024.832 J
This means that 8024.832 J of energy is lost or released.