1. Tardigrade
  2. Question
  3. Physics
  4. A gas can be taken from A to B via two different processes ACB and ADB . <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/p-ajqoayh0xry9lxmm.jpg /> When path ACB is used 60 J of heat flows into the system and 30 J of work is done by the system. If the path ADB is used then work done by the system is 10 J , the heat flows into the system in the path ADB is:

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. A gas can be taken from $A$ to $B$ via two different processes $ACB$ and $ADB$ .
Question
When path $ACB$ is used $60 \, J$ of heat flows into the system and $30 \, J$ of work is done by the system. If the path $ADB$ is used then work done by the system is $10 \, J$ , the heat flows into the system in the path $ADB$ is:

NTA AbhyasNTA Abhyas 2022

Solution:

For path $ACB$ ,
$ΔQ=ΔU+ΔW$
$60=ΔU+30$
$\Rightarrow \, \, ΔU=30J$
For path $ADB$
$ΔQ=ΔU+ΔW$
As initial and find points are the same, change in internal energy is same in both the cases
$ΔQ=30+10$
$=40 \, J$