   Chapter 10, Problem 3PS

Chapter
Section
Textbook Problem

Indicate which represents the higher pressure in each of the following pairs: (a) 534 mm Hg or 0.754 bar (b) 534 mm Hg or 650 kPa (c) 1.34 bar or 934 kPa

(a)

Interpretation Introduction

Interpretation:

The higher pressures from each of the following pairs should be given.

Concept Introduction:

Pressure=ForceArea

Pressure can be expressed in different units.  But it is normally reported in

mmHg(millimetersofmercury)

General unit conversions:

1atm=760mmHg1pascal=1newton/meter21atm=760mmHg=101.325kilopascals=1.01325bar1bar=1×105pascal

Explanation

Given:

535mmHgor0.754bar

Conversion of barintommHg.

Giventhevalueofpressureinbar=0.754bar

760mmHg=101

(b)

Interpretation Introduction

Interpretation:

The higher pressures from each of the following pairs should be given.

Concept Introduction:

Pressure=ForceArea

Pressure can be expressed in different units.  But it is normally reported in mmHg(millimetersofmercury)

General unit conversions:

1atm=760mmHg1pascal=1newton/meter21atm=760mmHg=101.325kilopascals=1.01325bar1bar=1×105pascal

(c)

Interpretation Introduction

Interpretation:

The higher pressures from each of the following pairs should be given.

Concept Introduction:

Pressure=ForceArea

Pressure can be expressed in different units.  But it is normally reported in mmHg(millimetersofmercury)

General unit conversions:

1atm=760mmHg1pascal=1newton/meter21atm=760mmHg=101.325kilopascals=1.01325bar1bar=1×105pascal

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