For the formation of HCL, ___________.

H_2 + Cl_2 rarr 2HCl + 44 K.Cal. Heat of formation of HCl is

When hydrogen gas is burnt in chlorine 2000 cals of heat is librated during the formation of 3.65 g of HCl, Delta H of formation of HCl is

The bond dissociation energies of gaseous H_(2),Cl_(2) , and HCl are 100, 50 , and 100 kcal mol^(-1) , respectively. Calculate the enthalpy of formation of HCl(g) .

The standard enthalpies of formation of HCl(g), H(g) and Cl(g) are -92.2 , 217.7 and 121.4 kJ mol^(-1) respectively. The bond dissociation enthalpy of HCl is :

The bond dissociation energies of gaseous H_(2), Cl_(2) and HCl are 104, 58 and 103 kCal/mole respectively. If magnitude of heat of formation of HCl = 11x, x=?

Sugandha prepares HCl gas in her school laboratory using certain chemicals, She puts both dry and wet blue litmus paper in contact with the gas. (i) Name the reagents used by Sugandha to prepare HCl gas. (ii) State the colour changes observed with the dry and wet blue litmus paper. Show the formation of ions when HCl gas combines with water.

H_2+Cl_2 overset to 2HCl, DeltaH = 194kJ In this reaction heat of formation of HCl in kJ is