If the pressure of 2 litres of an ideal gas is 4 atm then what will be the pressure of the gas if the volume is reduced to one- fourth of its present value? 

Explanation

To solve the problem, we will use Boyle's Law, which states that for a given mass of an ideal gas at constant temperature, the product of pressure (P) and volume (V) is constant. Mathematically, this is expressed as:

\[ P_1 V_1 = P_2 V_2 \]

### Step-by-Step Solution:

1. **Identify the Given Values:**
- Initial pressure, \( P_1 = 4 \, \text{atm} \)
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