Thermodynamics Question 10
Question 10 - 29 January - Shift 1
Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R. Assertion A : If dQ and dW represent the heat supplied to the system and the work done on the system respectively. Then according to the first law of thermodynamics $dQ=dU-dW$.
Reason R : First law of thermodynamics is based on law of conservation of energy.
In the light of the above statements, choose the correct answer from the option given below :
(1) A is correct but $R$ is not correct
(2) $A$ is not correct but $R$ is correct
(3) Both A and R are correct and R is the correct explanation of $A$
(4) Both $A$ and $R$ are correct but $R$ is not the correct explanation of $A$
Show Answer
Answer: (3)
Solution:
Formula: First Law Of Thermodynamics
First law of thermodynamics is based on law of conservation of energy and it can be written as $dQ=dU-dW$.
where $dW$ is work done on the system
