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NEET UG CHEMISTRY MCQ: THERMODYNAMICS
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For the isothermal expansion of an ideal gas
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Correct option: D
E and H are unaltered
The correct answer is D (E and H are unaltered) because for an ideal gas in an isothermal process, internal energy (E) and enthalpy (H) depend only on temperature, which remains constant.
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The internal energy of one mole of a gas is:
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:
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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