One mole of an ideal gas is expanded isothermally at 300 K from 10 atm to 1 atm. Calculate q,w, DeltaU & DeltaH under the following conditions. (i) Ex

Question

One mole of an ideal gas is expanded isothermally at 300 K from 10 atm to 1 atm. Calculate q,w, DeltaU & DeltaH under the following conditions. (i) Ex

One mole of an ideal gas is expanded isothermally at 300 K from 10 atm to 1 atm. Calculate q,w, DeltaU
& DeltaH under the following conditions.
(i) Expansion is carried out reversibly .
(ii) Expansion is carried out irreversibly.

Monjur Alahi

8 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Isothermal process
(i) For ideal gas `DeltaU=0" "DeltaH=0`
`q= -w`
`W_(rev) = - nRT ln ((P_(1))/(P_(r))) = - 1xxRxx300 In (10)/(1) = -690.9R`
(ii) `W_(irrev) =- P_(ext)(V_(2)-V_(1)) = - P_(ext)((nRT)/(P_(2))-(nRT)/(P_(1))) =-1xx1xxRxx 300[(1)/(1)-(1)/(10)] =- 270 R`

8 views Answered 2023-02-05 15:29