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Pressure units conversion: value of 1 mm of mercury in SI units (N/m²) Convert a pressure head of 1 mm Hg to pascals (N/m²) using the standard definition. Choose the correct value.

Q: Pressure units conversion: value of 1 mm of mercury in SI units (N/m²) Convert a pressure head of 1 mm Hg to pascals (N/m²) using the standard definition. Choose the correct value.

Concept Standard atmospheric pressure: 760 mm Hg ≈ 101325 Pa. Therefore, Calculation 1 mm Hg ≈ 101325 / 760 Pa≈ 133.322 Pa ≈ 133.3 N/m² Final Answer 133.3 N/m²

Difficulty: Easy

1.333 N/m²
13.33 N/m²
133.3 N/m²
1333 N/m²

Correct Answer: 133.3 N/m²

Explanation:

Concept
Standard atmospheric pressure: 760 mm Hg ≈ 101325 Pa. Therefore,

Calculation
1 mm Hg ≈ 101325 / 760 Pa≈ 133.322 Pa ≈ 133.3 N/m²

Final Answer
133.3 N/m²

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