Critical point liquid
solid
pressure (atm)
triple point gas
temperature (°C) -
What does the negative slope of the solid-liquid phase boundary in the phase diagram of water indicate?
OA. The density of solid water is less than that of gaseous water.
OB. The density of liquid water is less than that of gaseous water.
OC. The density of solid water is greater than that of liquid water.
The density of solid water is less than that of liquid water.
OD

answer: the enthalpy of the overall chemical reaction is +87.88 kj or +88 kj.

according to hess's law, the overall enthalpy of a reaction is the difference between the sum of enthalpy values of all the products and the sum of enthalpy values of all the reactants.

δh(reaction) = ∑nδh(products) - ∑nδh(reactants)

δh(reaction) = [δh +δh] - [δh]

δh(reaction) = [1(-287.02) + 1(0) ] - [1(-374.9)] kj = +87.88 kj

here, δh (pcl3) = -287.02 kj, δh(cl2) = 0, δh(pcl5) = -374.9 kj

therefore, enthalpy of the overall reaction is +87.88 kj or +88 kj.

if you mean hydrogen and oxygen then water is the product

i don,t know so just answer mine

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante