JEE Main 20257 Apr, Evening shiftChemistryEasyChemical Thermodynamics84× since 2002The correct statement amongst the following is :AOption A. ΔfH298θ\Delta_f H^\theta_{298}ΔfH298θ is zero for O(g)BOption B. The standard state of a pure gas is the pure gas at a pressure of 1 bar and temperature 273 K.COption C. The term 'standard state' implies that the temperature is 0°C.DOption D. ΔfH500θ\Delta_f H^\theta_{500}ΔfH500θ is zero for O2(g)\mathrm{O_2(g)}O2(g)CheckSkip · show solution
