A system is given $300$ calories of heat and it does $600$ joules of work. How much does the internal energy of the system change in this process? $( J =4.18$ $Joules / cal )$ (in joule)
AIIMS 2019, Medium
Download our app for free and get started
The internal energy of body is calculated as,
$J \Delta Q=\Delta U+\Delta W$
$\Delta U= J \Delta Q-\Delta W$
$=[(4.18$ Joules $/ cal ) 300$ calories -600 joules $]$
$=654$ joules
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1One mole of an ideal gas having initial volume $V$, pressure $2P$ and temperature $T$ undergoes a cyclic process $ABCDA$ as shown below : The net work done in the complete cycle isView Solution
- 2A diatomic ideal gas undergoes a thermodynamic change according to the $P-V$ diagram shown in the figure. The heat given the gas in $AB$View Solution
- 3In an adiabatic process, the state of a gas is changed from ${P_1},{V_1},{T_1} $ to ${P_2},{V_2},{T_2}$. Which of the following relation is correctView Solution
- 4A gas is suddenly compressed to $1/4$ th of its original volume at normal temperature. The increase in its temperature is ....... $K$ $(\gamma = 1.5)$View Solution
- 5An ideal gas expands isothermally from a volume ${V_1}$ to ${V_2}$ and then compressed to original volume ${V_1}$adiabatically. Initial pressure is ${P_1}$ and final pressure is ${P_3}$. The total work done is $W$. ThenView Solution
- 6An ideal gas follows a process described by $p V^2=C$ from $\left(p_1, V_1, T_1\right)$ to $\left(p_2, V_2, T_2\right)$ and $C$ is a constant. Then,View Solution
- 7A cyclic process $ABCA$ is shown in $PT$ diagram. When presented on $PV$, it wouldView Solution
- 8For a thermodynamic process $\delta Q = -50$ $calorie$ and $W = -20$ $calorie$ . If the initial internal energy is $-30$ $calorie$ then final internal energy will be ....... $calorie$View Solution
- 9A thermally insulated container is divided into two parts by a screen. In one part the pressure and temperature are $P$ and $T$ for an ideal gas filled. In the second part it is vacuum. If now a small hole is created in the screen, then the temperature of the gas willView Solution
- 10$1\,g$ of a liquid is converted to vapour at $3 \times 10^5\,Pa$ pressure. If $10 \%$ of the heat supplied is used for increasing the volume by $1600\,cm ^3$ during this phase change, then the increase in internal energy in the process will be $............\,J$View Solution