Calculate the standard entropy change of the following reaction at `25^@C` : `SO_2(g)+1/2O_2(g)rarr SO_3(g)` at `25^@C` tempr.and 1 atm pressure the standard entropy of `SO_2(g)` , `O_2(g) and SO_3(g)` are 248.5,205.0 and` 256.2JK^(-1)mol^(-1)` respectively

Predict the sign of entropy change is the following reactions O_2(g)+2SO_2(g)rarr 2SO_3(g)

Predict the sign of entropy change is the following reactions 2H_2(g)+O_2(g)rarr 2H_2O(g)

The relation between K_(p) and K_(c) for the following reaction : 2 SO_(2) (g) + O_(2) (g) hArr 2 SO_(3) (g) is -

At 25^(@)C , Delta H^(0) for the reaction , N_(2)(g)+(1)/(2)O_(2)(g) to N_(2)O(g) , is +82 kJ . At this temperature if the standard molar entropies for N_(2)(g),O_(2)(g) and N_(2)O(g) are 191.6, 205.2 and 219.9 J. K^(-1). " mol"^(-1) respectively, calculate Delta S_("univ")^(0) for the reaction.

Calculate the standard enthalpy of reaction at 25^@C temperature for the following reaction : C_6H_6(I) + frac 15/2 O_2 (g) rarr 6CO_2(g)+3H_2O(I) . Given: The standard enthalpy of formation of C_6H_6(I) , .CO_2(g) and H_2O(I) are 49.0kJ mol^-1 , -393.5 kJ mol^-1 and -285.8 kJ mol^-1 respectively.

At 1 atm and 298K DeltaH^(0) value of the reaction 2H_(2)(g)+O_(2)(g)to2H_(2)O(l) is -572 kJ. Calculate the change in entropy of the system and surroundings for this reaction. Is this reaction spontaneous at that temperature and pressure? Given: Standard molar entropies of H_(2)(g),O_(2)(g)&H_(2)O(l) at 298K are 130.6, 205.0 and 69.90 J*K^(-1)*mol^(-1) respectively.

Calculate the value of K_c for the given reactions: SO_2(g)+1/2O_2(g)toSO_3(g) , K_p=2.2 (at 100^(@)C )

Calculate standard enthalpy of reaction at 25^(@)C for the reaction: C Cl_(4)(g)+2H_(2)O(g)toCO_(2)(g)+4HC l(g) . Given: The standard heat of formation of C Cl_(4)(g),H_(2)O(g),CO_(2)(g) and HC l(g) are -25.5,-57.8,-94.1 and -22.1kcal*mol^(-1) .

Calculate the value of enthalpy of combustion of cyclopropane at 25^(@)C and 1 atm pressure. Given: Standard enthalpy of formation of CO_(2)(g),H_(2)O(l) & propene (g) at 25^(@)C are -393.5kJ*mol^(_1),-285.8kJ*mol^(-1)& 20.4kJ*mol^(-1) respectively. also standard enthalpy change for isomerisation reaction: Cyclopropane (g) hArr Propene (g) is -33.0kJ*mol^(-1) .