23. The Second Law of Thermodynamics
Entropy and the Second Law of Thermodynamics
23. The Second Law of Thermodynamics Entropy and the Second Law of Thermodynamics
3PRACTICE PROBLEM
An ice cream cake at -18 °C left out in the kitchen melts within 30 minutes. The temperature in the kitchen is 30 °C. The kitchen-ice cream system is considered isolated, and the kitchen temperature is assumed constant. Without using calculations, state if this is a reversible or an irreversible process and identify the sign of the entropy variation.
An ice cream cake at -18 °C left out in the kitchen melts within 30 minutes. The temperature in the kitchen is 30 °C. The kitchen-ice cream system is considered isolated, and the kitchen temperature is assumed constant. Without using calculations, state if this is a reversible or an irreversible process and identify the sign of the entropy variation.