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3

I've seen that Gibbs free energy is defined as the maximum amount of work that a system can do. From this I gather, this is how much energy it will release - right? No, this conclusions is incorrect, the Gibbs energy is not how much energy a process releases. A system can exchange energy with the surrounding in the form of heat or work. The Gibbs energy is ...


5

Suppose you have an ideal gas in a container in mechanical and thermal equilibrium with its surroundings (same temperature and pressure; say, $\pu{298 K}$ and $\pu{1 atm}$). It can't do any work on the surroundings. Now compress it isothermally to, say, $\pu{100 atm}$. Now it certainly can do expansion work on the surroundings. What change in ...


2

Two carbon dioxide scrubbers come to mind: lithium hydroxide and soda-lime. (https://en.wikipedia.org/wiki/Lithium_hydroxide)"Lithium hydroxide is used in breathing gas purification systems for spacecraft, submarines, and rebreathers to remove carbon dioxide from exhaled gas by producing lithium carbonate and water: 2 LiOH•H2O + CO2 → Li2CO3 + 3 H2O or ...


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Yes, one can calculate the specific heat capacity of the compound from its constituent elements that is just some of its constituent element's specific heat capacity. As it is known that specific heats of elements remain unchanged when they enter into compounds. However, the density/volume/mass may change and so the heat capacity.


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