Question

An ideal gas expands from the volume of 1 × 10–3 m3 to 1 × 10–2 m3 at 300 K against a constant pressure at 1 × 105 Nm–2. The work done is

Answer 1

QUESTiON :-

• An ideal gas expands from the volume of 1 × 10–3 m³ to 1 × 10^–2 m³ at 300 K against a constant pressure at 1 × 105 Nm^–2. The work done is

ANSWER :-

• -900 J

EXPLAiNATiON :--

• w = – P ∆ V
• w = – (1 × 10⁵ Nm^–2)

(1× 10^–2 m³ – 1 × 10^–3 m³)

• w= –10⁵ (10^–2 – 10^–3) Nm
• w = – 10⁵ (10 – 1) 10^–3) J
• w = – 10⁵ (9 × 10^–3) J
• w = –9 × 10² J
• w = –900 J

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Answer 2

Answer:

Work done, W=−PΔV =−10  

5

(10  

−2

−10  

−3

)N−m

W=−(1000−100) N.m=−900 J

Explanation:

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