for the reaction `2Cl(g)rarr Cl_2(g)` What are the signs of `Delta H` and `Delta S` ?

For the reaction 2Cl(g)toCl_(2)(g) , what are the signs of DeltaH and DeltaS ?

In the reaction, H_2(g) + Cl_2(g) iff 2HCl(g)

Following two reactions occur spontaneously. What will be the signs of DeltaS_(sys) and DeltaS_("surr") in these two reactions? (i) A(s)toB(s)+C(g),DeltaH gt0 (ii) 2X(g)toX_(2)(g),Delta H lt 0 .

The values of Delta H and Delta S in vaporisation of water at 1 atm pressure are 40.63 " kJ mol"^(-1) and 108.8 J. K^(-1). " mol"^(-1) respectively. At what temperature the free energy change of the reaction will be zero ? What will be the sign of Delta G below that temperature ?

Ammonia is prepared as 3H_2(g)+N_2(g)rarr 2NH_3(g) what should be the sign of Delta S for this reaction?

For the following reaction occuring in an automobile 2C_8H_18(g)+25O_2(g)rarr 16 CO_2(g)+18H_2O(g) the sign of Delta H ,Delta S and Delta G would be

Values of Delta H Delta S for the given reaction are -95.4 kJ and -198.3 J*K^(-1) respectively: N_(2)(g)+3H_(2)(g) to 2NH_(3)(g) State whether the reaction will be spontaneous at 500 K or not. Consider Delta H and DeltaS are independent of temperature.

Calculate the enthalpy for the reaction at 27^0C . C_2 H_5 Cl (s) rarr C H_4 (g) +HCl (g) , Delta H^0(C -C) = 350 kjmol ^(-1) H^0(C-H) = 410 Kjmol^(-)1 , Delta H(C = C) =600 kjmol^(-1) -Delta H^0(C-Cl) = 340^0k jmol^(-1) , Delta H^0(H-Cl) = 430 kjmol^(-1) .