Q. The work done by a gas expanding against a constant external pressure P from volume V₁ to V₂ is given by:

आयतन V₁ से V₂ तक एक स्थिर बाहरी दबाव P के विरुद्ध विस्तार करने वाली गैस द्वारा किया गया कार्य इस प्रकार दिया गया है:

P(V₂ - V₁)
पी(वी₂ - वी₁)

-P(V₂ - V₁)
-पी(वी₂ - वी₁)

P(V₂/V₁)
पी(वी₂/वी₁)

P ln(V₂/V₁)
पी एलएन(वी₂/वी₁)

Work done by the gas during expansion is:

w = -PΔV = -P(V₂ - V₁)
Negative sign indicates that energy is leaving the system.

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