A sample of an ideal gas is taken through cyclic process abca as shown in figure. change in internal

English

Gujarati

Hindi

11.Thermodynamics

medium

A sample of an ideal gas is taken through the cyclic process $abca$ as shown in the figure. The change in the internal energy of the gas along the path $ca$ is $-180\, J$. The gas absorbs $250\, J$ of heat along the path $ab$ and $60\, J$ along the path $bc$. The work done by the gas along the path $abc$ is ..... $J$

A

$120$

B

$100$

C

$140$

D

$130$

(JEE MAIN-2019)

Solution

	$\Delta\,E$	$\Delta\,W$	$\Delta\,Q$
$ab$			$250$
$bc$		$0$	$60$
$ca$	$-180$

	$\Delta\,E$	$\Delta\,W$	$\Delta\,Q$
$ab$	$120$	$130$	$250$
$bc$	$60$	$0$	$60$
$ca$	$-180$

Standard 11

Physics

Share

Similar Questions

A constant amount of an ideal gas undergoes the cyclic process $A B C A$ in the $p-V$ graph shown below. The path $B C$ is an isothermal. The work done by the gas during one complete cycle, beginning and ending at $A$ is nearly ………. $\,kJ$

hard

(KVPY-2011)

For the given cyclic process $CAB$ as shown for a gas, the work done is ….. $J$

easy

(JEE MAIN-2019)

Heat is supplied to a diatomic gas at constant pressure. The ratio of $\Delta Q\,:\,\Delta U\,:\,\Delta W$ is

medium

Two moles of monoatomic gas is expanded from $(P_0, V_0)$ to $(P_0 , 2V_0)$ under isobaric condition. Let $\Delta Q_1$, be the heat given to the gas, $\Delta W_1$ the work done by the gas and $\Delta U_1$ the change in internal energy. Now the monoatomic gas is replaced by a diatomic gas. Other conditions remaining the same. The corresponding values in this case are $\Delta Q_2 , \Delta W_2 , \Delta U_2$ respectively, then

normal

An ideal gas is taken through the cycle $A \to B \to C \to A$ , as shown in the figure. If the net heat supplied to the gas in the cycle is $5\ J$, the work done by the gas in the process $C \to A$ is …. $J$

medium