A system is taken through a cyclic process re | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) In a cyclic process,the net heat absorbed $\Delta Q$ is equal to the net work done $W$,which is equal to the area enclosed by the cyclic curve on

Vedclass · Accepted Answer

$\frac{\pi}{2} 	ext{ J}$

Vedclass · Answer

(B) In a cyclic process,the net heat absorbed $\Delta Q$ is equal to the net work done $W$,which is equal to the area enclosed by the cyclic curve on the $P-V$ diagram.The area of the circle is given by $A = \pi 	imes r_P 	imes r_V$,where $r_P$ is the radius along the $P$-axis and $r_V$ is the radius along the $V$-axis.From the graph:$P$ ranges from $50 	ext{ kPa}$ to $150 	ext{ kPa}$,so the diameter is $100 	ext{ kPa} = 10^5 	ext{ Pa}$. Thus,$r_P = 50 	ext{ kPa} = 5 	imes 10^4 	ext{ Pa}$.$V$ ranges from $20 	ext{ cc}$ to $40 	ext{ cc}$,so the diameter is $20 	ext{ cc} = 20 	imes 10^{-6} 	ext{ m}^3$. Thus,$r_V = 10 	ext{ cc} = 10^{-5} 	ext{ m}^3$.Area $= \pi 	imes (5 	imes 10^4 	ext{ Pa}) 	imes (10^{-5} 	ext{ m}^3) = \pi 	imes 0.5 	ext{ J} = \frac{\pi}{2} 	ext{ J}$.

$A$ system is taken through a cyclic process represented by a circle as shown. The heat absorbed by the system is

Similar Questions

One mole of an ideal gas is taken from $a$ to $b$ along two paths denoted by the solid and the dashed lines as shown in the graph below. If the work done along the solid line path is $w_s$ and that along the dotted line path is $w_d$,then the integer closest to the ratio $w_d / w_s$ is

$A$ thermodynamic system is taken through the cycle $PQRSP$ as shown in the $P-V$ diagram. The net work done by the system is ....... $J$.

An ideal monoatomic gas is taken round the cycle $ABCDA$ as shown in the following $P-V$ diagram. The work done during the cycle is

An ideal monoatomic gas is taken round the cycle $ABCDA$ shown in the $PV$ diagram. The work done during the cycle is

$A$ system goes from $A$ to $B$ via two processes $I$ and $II$ as shown in the figure. If $\Delta U_I$ and $\Delta U_{II}$ are the changes in internal energies in the processes $I$ and $II$ respectively,then:

Vedclass Test Series

Exam Paper Generator

Online Exam Module