   Chapter 10, Problem 9PS

Chapter
Section
Textbook Problem

You have 3.6 L of H2 gas at 380 mm Hg and 25 °C. What is the pressure of this gas if it is transferred to a 5.0-L flask at 0.0 °C?

Interpretation Introduction

Interpretation:

The final pressure of gas at 0°C has to be given if the initial pressure was 380mmHg at 25°C

Concept Introduction:

Different laws have been put forward to introduce properties of gases:

Boyle’s law:

At fixed temperature, the volume of a fixed amount of gas is inversely proportional to the pressure exerted by the gas.

P1V(n,vwillbeconstant)

Charles’s law:

States that volume is directly proportional to temperature when the gas is held at constant pressure and number of molecules.

VT

General Gas Law: Combining Charles’s law and Boyle’s law we get the General gas law or combined gas law.

P1V1T1=P2V2T2

Explanation

From Combined Gas law,

P1V1T1=P2V2T2

Given data:

P1=380mmHgP2=?T1=25°C=298KT2=0°C=273KV1=3

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