(a) Interpretation: To determine γ in the low-temperature and the high temperature limits for CO 2 (g). Concept introduction: The heat capacity of the system between any two temperatures is defined as the quantity of heat required to raise the temperature from lower to higher temperature divide by the temperature difference. And if the mass of the system is one mole then the system of the heat capacity is called the molar heat capacity.

Question

A sample of 4.50 g of methane occupies 12.7 dm³ at 310 K. (a) Calculate the work done when the gas expands isothermally against a constant external pressure of 200 Torr until its volume has increased by 3.3 dm³. (b) Calculate the work that would be done if the same expansion occurred reversibly.

Answer 1

Question

Chapter 2, Problem 2.62E

Interpretation Introduction

(a)

Interpretation:

To determine γ in the low-temperature and the high temperature limits for CO₂ (g).

Concept introduction:

The heat capacity of the system between any two temperatures is defined as the quantity of heat required to raise the temperature from lower to higher temperature divide by the temperature difference. And if the mass of the system is one mole then the system of the heat capacity is called the molar heat capacity.

Interpretation Introduction

(b)

Interpretation:

To determine γ in the low-temperature and the high temperature limits for H₂O (g).

Concept introduction:

The heat capacity of the system between any two temperatures is defined as the quantity of heat required to raise the temperature from lower to higher temperature divide by the temperature difference. And if the mass of the system is one mole then the system of the heat capacity is called the molar heat capacity.

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A sample of 4.50 g of methane occupies 12.7 dm³ at 310 K. (a) Calculate the work done when the gas expands isothermally against a constant external pressure of 200 Torr until its volume has increased by 3.3 dm³. (b) Calculate the work that would be done if the same expansion occurred reversibly.

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