The standard heat of formation of NO2(g)...

The standard heat of formation of `NO_2(g)` and `N_2O_4(g)` are 8.0 and `2.0 kcal mol^-1` respectively. The heat of dimarization of `NO_2` in kcal is:

-6

-12

-14

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

STATES OF MATTER (GASES & LIQUIDS)
PATHFINDER|Exercise QUESTION BANK|280 Videos

Similar Questions

Explore conceptually related problems

Standard heat of formation of C_2H_6(g),CO_2(g) and H_2O(l) are -21.1,-94.1 and -68.3 Kcal mol^(-1) respectively calculate standard heat of combustion of C_2H_6(g)

The standard heats of combustion of CH_(4)(g) and C_(2)H_(6)(g) are -890 kJ*mol^(-1) and -1560 kJ*mol^(-1) , respectively. Why is the calorific value of C_(2)H_(6)(g) lower than that of CH_(4)(g) ?

The molar heats of combustion of C_2H_2(g),C(graphite) and H_2(g) are -310.62, -94.05, -68.32 kcal respectively. The heat of formation of acetylene Is

Enthalpies of formation of CO(g), CO_2(g),N_2O(g) and N_2O_4(g) are -110,-393,81 and 9.7KJ mol^(-1) respectively calculate Delta H_r for the reaction : N_2O_4(g)+3CO(g)rarr N_2O(g)+3CO_2(g)

The standard heat of formation of C_6 H_5 COOH (s) CO_2 (g) & H_2 O (1) at 300K are -408, - 393, & -286 Kj mol^-1 respectively. Calculate the heat of Combustion of Benzoic acid.

The standard heats of formation at 298 K for C CI_4(g) , H_2O (g), CO_2 (g) and HCI (g) are -25.5, -57.8, -94.1 and -22.1 kcal mol^-1 respectively,calculate DeltaH "_(298K)^@ , for the reaction : C Cl_4 (g) + 2H_2O (g) to CO_2 (g) + 4HCI (g)

The heat of reaction for the following reaction (DeltaH^(0)) at 25^(@)C temperatue is -1368 kJ: C_(2)H_(5)OH(l)+3O_(2)(g) to 2CO_(2)(g)+3H_(2)O(l) If the enthalpy of formation of CO_(2)(g) and H_(2)O(l) at 25^(@)C are -393.5 and -285.8 kJ*mol^(-1) respectively, then what will be the value of the standard enthalpy of formation of C_(2)H_(5)OH(l) ?

PATHFINDER-THERMODYNAMICS-QUESTION BANK

The value of DeltaH(comb) of four gases C2H6, C2H4, C2H10, CH4 are giv...
Text Solution
|
A solution of 500 mL of 0.2 M KOH and 500 mL of 0.2 M HCl are mixed an...
Text Solution
|
The standard heat of formation of NO2(g) and N2O4(g) are 8.0 and 2.0 k...
Text Solution
|
Given enthalpy of formation of CO2(g) and CaO(s) are -94.0 kJ and -152...
Text Solution
|
H2(g)rarr2H(g), DeltaH=104.2 kcal. The bond energy of H-H bond is
Text Solution
|
Which compound will absorb the maximum amount of heat when dissolved i...
Text Solution
|
Heat evolved in the reaction, H2+Cl2rarr2HCl is 182 kJ. Bond energies ...
Text Solution
|
For which change DeltaH ne DeltaU?
Text Solution
|
The enthalpies of combustion of carbon and carbon monoxide are -393.5 ...
Text Solution
|
A particular reaction has DeltaH =+250 kJmol^-1, which of the followin...
Text Solution
|
Combustion of octand takes place in an automobile engine. The homogene...
Text Solution
|
Estimate the minimum temperature above which the raction will be spont...
Text Solution
|
DeltaH and DeltaS for a reaction are +30.558 kJmol^-1 and 0.066 kJ K^-...
Text Solution
|
For which of these processes is the value of DeltaS negative I. Sugar ...
Text Solution
|
The direct conversion of A to B is difficult, hence it is carried out ...
Text Solution
|
Identify the correct statement regarding a spontaneous process
Text Solution
|
Given, NH3(g)+3Cl2(g)iffNCl3(g)+3HCl(g),-DeltaH1 N2(g)+3H2(g)iff2NH3...
Text Solution
|
CV value of He is always 3/2 R. CV value for hydrogen at low temperatu...
Text Solution
|
An ideal gas is allowed to expand both reversibly and irreversibly in ...
Text Solution
|
A given mass of gas expands from the state A to state B by three paths...
Text Solution
|