What type of systes are the following system?
Hot tea placed in a sealed metallic tea pot.

Explanation

To determine the type of system represented by hot tea placed in a sealed metallic teapot, we need to analyze the characteristics of the system based on the definitions of the three types of thermodynamic systems: open, closed, and isolated systems.

### Step-by-Step Solution:

1. **Understand the Definitions of the System Types**:
- **Open System**: An open system can exchange both matter and energy (heat and work) with its surroundings.
- **Closed System**: A closed system can exchange energy (heat and work) but not matter with its surroundings.
- **Isolated System**: An isolated system cannot exchange either matter or energy with its surroundings.
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