A constant volume gas thermometer is calibrated in dry ice and in boiling ethyl alcohol at temperature `78^(@)C`. The corresponding pressure ar 0.90 atm and 1.63 atm. What is the pressure at the boiling of water ?

Explanation

To solve the problem, we will follow these steps:

### Step 1: Convert the given temperatures to Kelvin
1. The temperature at which the gas thermometer is calibrated is given as \( T_1 = 78^\circ C \).
- To convert Celsius to Kelvin, use the formula:
\[ T(K) = T(°C) + 273 \]
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