In a thermodynamic process,the pressure of a fixed mass of a gas is changed in such a manner that the gas releases $30 \ J$ of heat and $10 \ J$ of work is done on the gas. If the initial internal energy of the gas was $30 \ J$,then the final internal energy will be ........ $J$.
- A$2$
- B$-18$
- C$10$
- D$58$
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The first law of thermodynamics confirms the law of . . . . . . .
The first law of thermodynamics is a special case of:
Easy
View SolutionIf $\Delta Q$ and $\Delta W$ represent the heat supplied to the system and the work done on the system respectively,then the first law of thermodynamics can be written as,where $\Delta U$ is the change in internal energy.
Medium
View SolutionAssertion : Heat and work are modes of energy transfer to a system resulting in change in its internal energy.
Reason : Heat and work in thermodynamics are state variables.
The correct option among the following is
Reason : Heat and work in thermodynamics are state variables.
The correct option among the following is
Which of the following statements is incorrect regarding the first law of thermodynamics?
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