The pressure exerted by a certain mass of gas is 100cm of Hg at `30^(@)C`. The gas is heated at constant volume. At what temperaute will the pressure exerted by the gas be 200cm of Hg?

Explanation

To solve the problem, we will use the relationship between pressure and temperature of a gas at constant volume, which is given by Gay-Lussac's Law. According to this law, the ratio of pressure to temperature for a given mass of gas at constant volume is constant.

### Step-by-Step Solution:

1. **Identify the Given Values:**
- Initial pressure, \( P_1 = 100 \, \text{cm of Hg} \)
- Final pressure, \( P_2 = 200 \, \text{cm of Hg} \)
- Initial temperature, \( T_1 = 30^\circ C \)
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