At constant temperature and volume x decomposes as 2x (g)-3y(g)+2z(g)px is the partial pressure of x. Observation :1,2,3and time(min)0,100,200and px(in mm of Hg):800,400,200.i)What is the order of the reaction with respect to x? ii)Find the rate constant
iii)Find the total pressure when pressure of x is 700mmHg.

c8h10 is your answerr

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.

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a

i believe the answer is true.