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NEET UG CHEMISTRY MCQ: THERMODYNAMICS
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The change in internal energy if of heat is given to the system at constant pressure and of work is done by the system is
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Correct option: C
Option C () is correct because the change in internal energy is calculated as the heat added to the system minus the work done by the system.
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An ideal gas is allowed to expand both reversibly and irreversibly in an isolated system. If is the initial temperature and is the final temperature, which of the following statements is correct?
For which of the process, ∆S is negative?
The work done by a weightless piston in causing an expansion ∆V (at constant temperature), when the opposing pressure, P is variable, is given by:
Assertion :- At constant pressure of the change work done is negative.
Reason :- During phase transition work done is always negative. For the reaction, at . Hence, is
Reason :- During phase transition work done is always negative. For the reaction, at . Hence, is