A gas cylinder can hold 1 kg of hydrogen at room temperature and pressure :
State the law that helped you to arrive at the above result.

Explanation

To solve the question regarding the gas cylinder that can hold 1 kg of hydrogen at room temperature and pressure, we will follow these steps:

### Step-by-Step Solution:

1. **Understanding the Ideal Gas Law**:
The ideal gas law is given by the equation \( PV = nRT \), where:
- \( P \) = pressure
- \( V \) = volume
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