Q. 10 The cycle of FIGURE EX 21.10聽co... [FREE SOLUTION]

Chapter 21: Q. 10 (page 594)

The cycle of FIGURE EX $21.10$ consists of four processes. Make a table with rows labeled $A$ to $D$ and columns labeled $鈭� E_{t h}$ , $W_{s}$ , and $Q$ . Fill each box in the table with $+$ , $-$ , or $0$ to indicate whether the quantity increases, decreases, or stays the same during that process.

Short Answer

Expert verified

Result can be found taking into consideration that the processes are isochoric, adiabatic, isothermal and isobaric from A to D respectively.

Step by step solution

Introduction

Isochoric process, also known as constant-volume process, in thermodynamics, is a thermodynamic process in which the volume of the closed system remains constant. In the figure A is the isochoric process. D is the isobaric process . In this process, pressure remains constant. In B , which is a adiabatic process , no heat is given to the system and no heat is extracted . In isothermal process C , temperature and hence internal energy of the system remains constant.

Explanation

In isochoric process , work done by gas is zero because of fixed volume. Pressure increases due to addition of heat . In isobaric process D , volume decreases , so work done is negative, Volume decreases due to cooling , hence internal energy decreases . In adiabatic process , Q is zero . Volume increases so work done is positive . In isothermal process , internal energy remains constant because of constant temperature and as volume increases , work done is positive due to addition of heat.

Taking this into consideration we can construct the following table: