In changing the state of a thermodynamic syst | vedclass

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Question

(B) According to the First Law of Thermodynamics, the heat supplied to a system ($\Delta Q$) is equal to the sum of the change in internal energy ($\D

Vedclass · Accepted Answer

$Q - W$

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(B) According to the First Law of Thermodynamics, the heat supplied to a system ($\Delta Q$) is equal to the sum of the change in internal energy ($\Delta U$) and the work done by the system ($\Delta W$).Mathematically, this is expressed as: $\Delta Q = \Delta U + \Delta W$.Given that the heat supplied is $Q$ and the work done by the system is $W$, we substitute these values into the equation: $Q = \Delta U + W$.Rearranging the equation to solve for the change in internal energy ($\Delta U$): $\Delta U = Q - W$.

In changing the state of a thermodynamic system from state $A$ to state $B$, the heat supplied to the system is $Q$ and the work done by the system is $W$. The change in its internal energy is

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