First slide

2nd Law of Thermodynaimcs

Question

Select the incorrect relation

Moderate

A

$∆_{vap .} S = \frac{q_{rev .}}{T (b . p)}$
B

$∆_{f u s .} S = \frac{q_{rev .}}{T (m . p)}$
C

For spontaneous change ( $(∆ S_{s y s .} + ∆ S_{s u r r .}) > 0$
D

For reversible and irreversible expansion of an ideal gas under isothermal condition $∆ U \neq 0 but ∆ S_{Total} = 0$

Solution

For such cases $∆ U = 0 but ∆ S_{Total} > 0$ .

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App