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NEET UG CHEMISTRY MCQ: THERMODYNAMICS
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A mixture of hydrogen and chlorine on exposure to ultra violet sunlight reacts with explosion. The step involved in the initiation of the reaction is :
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Correct option: D
The correct answer is D () because the initiation step in the reaction of hydrogen and chlorine involves the homolytic cleavage of chlorine molecules into chlorine radicals.
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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