A faulty constant volume thermometer using helium gas records a pressure of `1.65 xx 10^4` Pa at normal freezing point of water, and a pressure of `2.10 xx 10^4` Pa at normal boiling point of water. Using these observations, determine the temperature of absolute zero on the Celsius scale.

Explanation

To determine the temperature of absolute zero on the Celsius scale using the given pressures from a faulty constant volume thermometer with helium gas, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Given Values**:
- Pressure at freezing point (P1) = \(1.65 \times 10^4 \, \text{Pa}\)
- Pressure at boiling point (P2) = \(2.10 \times 10^4 \, \text{Pa}\)
- Freezing point of water (T1) = \(0^\circ \text{C}\)
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