Question

What work is done by a system on its environment when an ideal gas is maintained at a constant pressure of 200 newtons/meter2 during an isobaric process, while the volume decreases by 0.2 cubic meters?
A. 40 joules
B. 1,000 joules
C. -40 joules
D. -1,000 joules

Answer 1

As we know that work done by external environment is given as

$W = P\Delta V$

here we know that

P = 200 N/m^2

$\Delta V = 0.2 m^3$

now we will have

$W = P\Delta V$

$W = 200 N/m^2 (0.2 m^3)$

$W = 40 J$

so work done by external atmosphere will be 40 J

so correct answer will be

A. 40 joules

Answer 2

Answer:

a. 40 joules is INCORRECT on PLATO!!!!!

Explanation: