A manometer is connected to a gas containing bulb. The open arm reads `40.0 cm` where as the arm connected to the bulb reads `15.0 cm`. If barometric pressure is `74.0 cm Hg`, then what is the pressure of gas in bar?

Explanation

To solve the problem, we need to determine the pressure of the gas in the bulb using the readings from the manometer and the barometric pressure. Here’s a step-by-step solution:

### Step 1: Understand the Manometer Readings
The manometer has two arms:
- The open arm reads 40.0 cm of mercury (Hg).
- The arm connected to the gas bulb reads 15.0 cm of mercury (Hg).

### Step 2: Calculate the Height Difference
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