When solid carbon reacts with oxygen gas to produce carbon dioxide gas. the deltaH (enthalpy change ) value is negative .DeltaH would be on the product side of the equation.
<h3>What is enthalpy change? </h3>
In a thermodynamic system, energy is measured by enthalpy. Enthalpy is a measure of a system's overall heat content and is equal to the system's internal energy plus the sum of its volume and pressure.
Knowing whether q is endothermic or exothermic allows one to characterise the relationship between q and H. An endothermic reaction is one that absorbs heat and demonstrates that heat from the environment is used in the reaction, hence q>0 (positive). For the aforementioned equation, under constant pressure and temperature, if q is positive, then H will also be positive. In a similar manner, heat is transferred to the environment when it is released during an exothermic reaction. Thus, q=0 (negative). Therefore, if q is negative, H will also be negative.
Learn more about enthalpy change here :
brainly.com/question/1445358
#SPJ13
Answer:
a) 
, 
, b) 
, 
Explanation:
a) The ideal gas is experimenting an isocoric process and the following relationship is used:
Final temperature is cleared from this expression:
The number of moles of the ideal gas is:
The final temperature is:
The final pressure is:
b) The ideal gas is experimenting an isobaric process and the following relationship is used:
Final temperature is cleared from this expression:
The final volume is:
Nitrogen. air consists 78% of nitrogen gas
5.5 grams of reactants. According to the Law of Conservation of Mass, mass isn’t created or lost through any chemical changes, so the total mass should remain constant from the initial reactants to the final products.
