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NEET UG CHEMISTRY MCQ: THERMODYNAMICS
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The law of Lavoisier and Laplace is based on :
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Correct option: A
The principle of conservation of energy
Option A (The principle of conservation of energy) is correct because the law of Lavoisier and Laplace states that the energy change accompanying a reaction is equal in magnitude and opposite in sign to the energy change accompanying the reverse reaction, which is a direct consequence of the conservation of energy.
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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:
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