Question

What is the value of the work interaction in this process?

a. -272 kJ/kg
b. -32 kJ/kg
c. 31 kJ/kg
d. 272 kJ/kg

Answer 1

The answer is "
`-121\ (KJ)/(Kg)`".

Step-by-step explanation:

Please find the correct question in the attachment file.

using formula:

`\to W=-P_1V_1+P_2V_2 \\\\When \\\\\to W= (P_1V_1-P_2V_2)/(n-1)\ \ or \ \ (RT_1 -RT_2)/(n-1)\\\\`

`W =(R(T_1 -T_2))/(n-1)\\\\`

`=(0.287(25 -237))/(1.5-1)\\\\=(0.287(-212))/(0.5)\\\\=(-60.844)/(0.5)\\\\=-121.688 (KJ)/(Kg)\\\\=-121 (KJ)/(Kg)\\\\`