a gas is allowed to expand in a well insulated | Dofollow Social Bookmarking Sites 2016
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ΔU = q + wFor adiabatic process, q = 0∴ ΔU = w= – P·ΔV= –2.5 atm × (4.5 – 2.5) L= –2.5 × 2 L-atm= –5 × 101.3 J= –506.5 J= –505 J