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
Inessa [10]
3 years ago
14

A piston chamber filled with ideal gas is kept in a constant-temperature bath at 25.0°C. The piston expands from 25.0 mL to 75.0

mL very, very slowly, as illustrated in the Figure below. If there is 0.00100 mole of ideal gas in the chamber, calculate the work done by the system
Chemistry
1 answer:
larisa [96]3 years ago
8 0

Answer : The work done by the system is, 2.2722 J

Explanation :

The expression used for work done in reversible isothermal expansion will be,

w=nRT\ln (\frac{V_2}{V_1})

where,

w = work done = ?

n = number of moles of gas  = 0.00100 mole

R = gas constant = 8.314 J/mole K

T = temperature of gas  = 25^oC=273+25=298K

V_1 = initial volume of gas  = 25 mL

V_2 = final volume of gas  = 75 mL

Now put all the given values in the above formula, we get:

w=0.00100mole\times 8.314J/moleK\times 298K\times \ln (\frac{75}{25})

w=2.722J

Therefore, the work done by the system is, 2.2722 J

You might be interested in
What is diffusion?<br>Class 9th <br>Chemistry <br><br><br><br><br>​
tester [92]

Diffusion is the movement of a substance from an area of high concentration to an area of low concentration . Diffusion happens in liquids and gases because their particles move randomly from place to place . Diffusion is an important process for living things ; it is how substances move in and out of cells .

Pls follow me and Mark as brainlest :-)

6 0
2 years ago
Read 2 more answers
How do dominate and recessive alleles differ?
ch4aika [34]
 Hi , basically dominant alleles are always expressed in the organism , while recessive traits   tend to be expressed only when the dominant allele is not present.
3 0
2 years ago
Calculate the mass (in ng) of 2.33 x 1020 atoms of oxygen.
Law Incorporation [45]
<span>Answer = 6.19 x 10^6  </span>
4 0
3 years ago
Read 2 more answers
How much heat in kj is released by burning 9.5 grams of methane?
tatyana61 [14]
Methane is the compound CH4, and burning it uses the reaction:

CH4 + O2 -> CO2 + H2O, which is rather exothermic. To find the heat released by burning a certain amount of the substance, you should look at the bond enthalpy of each compound, and then compare the values before and after the reaction. In methane, there are 4 C-H bonds, which have bond energy of 416 kj/mol, resulting in a total bond energy of 1664 kj/mol. O2 is 494 kj/mol. Therefore we have a total of 2080 kj/mol on the left side. On the right side we have CO2, which has 2 C=O bonds, each at 799 kj/mol each, resulting in 1598 kj/mol, and H2O has 2 O-H bonds, at 459kj/mol each, resulting in a total of 2516 kj/mol on the right hand side. Now, this may be confusing because the left hand side seems to have less heat than the right, but you just need to remember: making minus breaking, which results in a total change of 436kj/mol heat evolved.

Now it is a simple matter of find the mols of CH4 reacted, using n=m/mr.

n = 9.5/16.042 = 0.592195 mol

Therefore, if we reacted 0.592195 mol, and we produced 436 kj for one mol, the total amount of energy evolved was 436*<span>0.592195 kj, or 258.197 kj.</span>
7 0
3 years ago
A dose of aspirin of 5.0 mg per kilogram of body weight has been prescribed to reduce the fever of an infant weighing 8.5 pounds
Tanya [424]
<h3><u>Answer</u>;</h3>

19 mg

<h3><u>Explanation</u>;</h3>

dose = 5.0 mg/kg  

weight of infant = 8.5 pounds

Convert 8.5 pounds to kg: 8.5 pounds = 3.86 kg

Therefore;

The dose to give the infant is:  

= (5.0 mg/kg) x (3.86 kg)

= 19.3 mg  

<u>≈ 19 mg</u>

5 0
3 years ago
Read 2 more answers
Other questions:
  • The atoms of which element will typically form ions
    14·1 answer
  • What changes could be made to optimize the manufacturing process
    15·1 answer
  • Butane, ch3-ch2-ch2-ch3, is a hydrocarbon fuel used in lighters. how many moles of molecules are there in a 350. gram sample of
    8·1 answer
  • In the human body is about 10 pounds of blood how much does The water in the blood weigh
    12·1 answer
  • In a first-order reaction, the half-life is 139 minutes. What is the rate constant?
    12·1 answer
  • Determine the mass in grams of 0.600 mol of oxygen atoms ( 32 grams x1mole/(mass of element)
    13·1 answer
  • Describe un modelo matemático para representar lo que sucede en cada una de las reacciones químicas  (incluye toda la simbología
    7·1 answer
  • What is the formula mass of NaCl?
    14·1 answer
  • Please Answer ASAP!!
    12·1 answer
  • Solution A has a pH of 3, and solution B has a pH of 5. Which statement best
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!