Solid Ca(HCO3) 2 decomposes as Ca(HCO3)2 (s)⇌CaCO3(s)+CO2 (g)+H2 O(g) If the total pressure is 0.2 bar at 420K what is the standard free energy change for given reaction (ΔrG^o )? Solid Ca(HCO3) 2 decomposes as Ca(HCO3)2 (s)⇌CaCO3(s)+CO2 (g)+H2 O(g) If the total pressure is 0.2 bar at 420K what is the standard free energy change for given reaction (ΔrG^o )? November 11, 2020 Category: Chapter 5 - Chemical Equilibrium (Level 1 and Level 2) , N Awasthi Physical Chemistry , Facebook Messenger WhatsApp Share this:TwitterFacebook Related