When preparing NaOH solution, it is best to use water that does not contain any dissolved CO2 gas, as it reacts with the NaOH. What is the best way to remove the dilute CO2 gas from the water before adding the NaOH? *

a c d and f

just finished the assignment

while cooking a piece of 1/2 pound beef steak, a cast iron pan (2.4kg in weight) was heated 260 celsius.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.