Home
Class 11
PHYSICS
One mole of O(2) gas having a volume equ...

One mole of `O_(2)` gas having a volume equal to 22.4 litres at `0^(@)C` and 1 atmospheric pressure is compressed isothermally so that its volume reduces to 11.2 litres. The work done in this process is

A

672.5 J

B

1728 J

C

`-1728J`

D

`-1572.5J`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem of calculating the work done during the isothermal compression of one mole of \( O_2 \) gas, we will follow these steps: ### Step-by-Step Solution: 1. **Identify Given Values:** - Number of moles of gas, \( n = 1 \) mole - Initial volume, \( V_1 = 22.4 \) liters - Final volume, \( V_2 = 11.2 \) liters - Temperature, \( T = 0^\circ C = 273 \) K - Universal gas constant, \( R = 8.314 \, \text{J/(mol K)} \) 2. **Understand the Work Done Formula:** The work done \( W \) during isothermal compression can be calculated using the formula: \[ W = -nRT \ln\left(\frac{V_2}{V_1}\right) \] Since we are using logarithm base 10, we will convert it using: \[ \ln(x) = 2.303 \log_{10}(x) \] Therefore, the formula becomes: \[ W = -2.303 nRT \log_{10}\left(\frac{V_2}{V_1}\right) \] 3. **Calculate the Logarithmic Term:** \[ \frac{V_2}{V_1} = \frac{11.2}{22.4} = 0.5 \] Now calculate \( \log_{10}(0.5) \): \[ \log_{10}(0.5) \approx -0.301 \] 4. **Substitute Values into the Work Done Formula:** Now substitute \( n = 1 \), \( R = 8.314 \, \text{J/(mol K)} \), \( T = 273 \, \text{K} \), and \( \log_{10}(0.5) \) into the formula: \[ W = -2.303 \times 1 \times 8.314 \times 273 \times (-0.301) \] 5. **Calculate the Work Done:** First, calculate the product: \[ W = -2.303 \times 8.314 \times 273 \times (-0.301) \] Calculate: \[ W \approx -2.303 \times 8.314 \times 273 \times (-0.301) \approx -1573.5 \, \text{J} \] 6. **Final Result:** The work done during the isothermal compression is approximately: \[ W \approx -1573.5 \, \text{J} \] ### Conclusion: The work done in this process is approximately \(-1573.5\) Joules.

To solve the problem of calculating the work done during the isothermal compression of one mole of \( O_2 \) gas, we will follow these steps: ### Step-by-Step Solution: 1. **Identify Given Values:** - Number of moles of gas, \( n = 1 \) mole - Initial volume, \( V_1 = 22.4 \) liters - Final volume, \( V_2 = 11.2 \) liters ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • KINETIC THEORY OF GASES

    NARAYNA|Exercise LEVEL-II(C.W)|25 Videos
  • KINETIC THEORY OF GASES

    NARAYNA|Exercise LEVEL-III(C.W)|52 Videos
  • KINETIC THEORY OF GASES

    NARAYNA|Exercise C.U.Q|153 Videos
  • GRAVITATION

    NARAYNA|Exercise EXERCISE -IV|40 Videos
  • LAW OF MOTION

    NARAYNA|Exercise EXERCISE - IV|35 Videos

Similar Questions

Explore conceptually related problems

A gas expands from 1 litre to 3 litres at atmospheric pressure. The work done by the gas is about

How many moles of He gas occupy 22.4 litres at 30 ^(2) C and one atmospheric pressure ?

Knowledge Check

  • One mole of O_2 gas having a volume equal to 22.4 Litres at 0^@C and 1 atmospheric pressure in compressed isothermally so that its volume reduces to 11.2 litres. The work done in this process is-

    A
    1672.5 J
    B
    1728 J
    C
    –1728 J
    D
    –1572.5 J
  • How many moles of He gas occupy 22.4 litres at 30^@C and one atmospheric pressure

    A
    0.9
    B
    1.11
    C
    0.11
    D
    1
  • How many moles of He gas occupy 22.4 litres at 30^(@)C and one atmospheric pressure

    A
    0.9
    B
    1.11
    C
    0.11
    D
    1
  • Similar Questions

    Explore conceptually related problems

    A perfect gas of volume 10 litre is compressed isothermally to a volume of 1 litre, the rms speed of the molecules will

    Two moles of an ideal gas at 2 atm and 27^(@)C is compressed isothermally to half of its volume by external pressure of 4 atm. The work doen is

    If the volume of air at 0^(@)C and 10 atmospheric pressure is 10 litre . Its volume, in litre, at normal temperature and pressure would be

    One litre of a gas is maintained at pressure 72 cm of mercury. It is compressed isothermally so that its volume becomes 900 cm^3 . The values of stress and strain will be respectively

    The volume of gas at 27^(@) C and 2 atmospheric pressure is 2 litres. If the pressure is doubled and absolute temperature is reduced to halff, what will be volume of the gas?