An ideal gas expands along the path AB as shown in the p-V diagram. The work done is

Question

An ideal gas expands along the path AB as shown in the p-V diagram. The work done is <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/038d230cbe9af3a439da0a8a91b3645a-.png" /> (A)  4× 104J  (B)  1.2× 105J  (C)  2.4× 105J  (D) None of these

Tardigrade Admin · Accepted Answer

Work done = area of trapezium =(1/2) ×(8 × 105+4 × 105) × 0.2 =1.2 × 105 J

Q. An ideal gas expands along the path $A B$ as shown in the $p - V$ diagram. The work done is

$4 \times 1 0^{4} J$

$1.2 \times 1 0^{5} J$

$2.4 \times 1 0^{5} J$

None of these

Work done = area of trapezium
$= \frac{1}{2} \times (8 \times 1 0^{5} + 4 \times 1 0^{5}) \times 0.2$
$= 1.2 \times 1 0^{5} J$

Q. An ideal gas expands along the path AB as shown in the p−V diagram. The work done is

4×104J

1.2×105J

2.4×105J