Iexposed to atmospheric air
il heated with silver powder
3 2074 set b q. no. 9 why is chloroform stored in dark
coloured bottle containing ethanol?
4. 2073 supp q. no. 9 an alkene undergoes addition win
hbr to give ®. when ® is heated with sodium
presence of dry ether give 2,3-dimethylbutane. idem
and ®

58750.08068 is the answer i think

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.