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Elza [17]
3 years ago
12

One mole of an ideal gas does 3000 J of work on its surroundings as it expands isothermally to a final pressure of 1.00 atm and

volume of 25.0 L. Determine:
a) the initial volume ?
b) the temperature of the gas?
(Note: 1 atm = 1.01 x 105Pa, universal gas constant R = 8.31 J/mol K, 1 L = 10-3m3)
Physics
1 answer:
taurus [48]3 years ago
5 0

Answer:

(a) Initial volume will be 7.62 L

(b) Final temperature will be 303.85 K

Explanation:

We have given one mole of ideal gas done 3000 J

So work done W = 3000 J

Let initial volume is V_1 and initial pressure P_1=1atm ( As pressure is constant )

Final volume V_2=25L = 0.025 m^3

Number of moles n = 1

(B) From ideal gas of equation we know that PV=nRT

So 1.01\times 10^5\times0.025=1\times 8.31\times T

T = 303.85 Kelvin

(B) For isothermal process work done is equal to

W=nRTln\frac{V_2}{V_1}

3000=1\times 8.314\times 303.85\times ln\frac{0.025}{V_1}

ln\frac{0.025}{V_1}=1.1881

\frac{0.025}{V_1}=3.2808

V_2=0.00846m^3=7.62L

So initial volume will be 7.62 L

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