A closed vessel with rigid walls contains 1 mole of `._(92)^(238)U` and 1 mole of air at `298K`. Considering complete decay of `._(92)^(238)U` to `._(82)^(206)Pb`the ratio of the final pressure to the initial pressure of the system at `298K` is

Explanation

To solve the problem, we need to analyze the decay of Uranium-238 and its impact on the pressure in the closed vessel. Here’s a step-by-step solution:

### Step 1: Understand the decay of Uranium-238
Uranium-238 decays into Lead-206 and emits particles during the process. Specifically, it emits 8 alpha particles and 6 beta particles.

### Step 2: Determine the initial number of moles
Initially, we have:
- 1 mole of Uranium-238
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