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Match the thermodynamic processes given under Column I with the expressions given under Column II.
Column I
Column II
(a) Freezing of water at \( 273 \mathrm{~K} \) and \( 1 \mathrm{~atm} \)
(P) \( q=0 \)
(b) Expansion of \( 1 \mathrm{~mol} \) of an ideal gas into
(Q) \( w=0 \) a vacuum under isolated conditions
(c) Mixing of equal volumes of two ideal gases
(R) \( \Delta S_{\text {sys }}0 \)
at constant temperature and pressure in an isolated container
(d) Reversible heating of \( \mathrm{H}_{2} \) (g) at \( 1 \mathrm{~atm} \) from \( 300 \mathrm{~K} \) to \( 600 \mathrm{~K} \),
(S) \( \Delta \mathrm{U}=0 \)
followed by reversible cooling to \( 300 \mathrm{~K} \) at \( 1 \mathrm{~atm} \)
(T) \( \Delta G=0 \)
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