Question

A 1.0 mal sample of an ideal pas is kept at 0.0°c during an expansion from Bradba xa 3.0 litre to 10.0 litre a) How much work is done on the pas during the expansion? b) How much everly transfer by heat occurs with the surroundings in this Process?​

Answer 1

The work done during expansion is 2.73×10³J and the heat transferred to the surrounding is -2.73×10³ J

What is isothermal process ?

The thermodynamic process which takes place in constant temperature of the system is called isothermal process.

What is work done in isothermal process?

• Due to change in volume of the system at constant temperature, some work is done .
• As, the temperature of gas is fixed. This process is isothermal.
• Now, work done (W) = nRT ln ( V2/V1)
• where W = work done by the system

n= number of moles

R= universal gas constant

V2= volume of the system after expansion

V1= volume of the system before expansion

• W= (1)(8.31)(273)ln ( 10/3)

= 2.73×10³ J.

• Also in isothermal process the amount of work done by the system = -( the amount of heat transferred to the surrounding)
• So the amount of heat transferred is -2.73×10³ J

Thus, we can conclude that a) the amount of work done is 2.73×10³J and b) the amount of heat transferred to the surrounding is -(2.73×10³J).

Learn more about isothermal process here:

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