STATEMENT -1: All combustion reactions are exothermic. STATEMENT -2: Enthalpies of products are greater than enthalpies of reactants `(Sigmav_(p)Delta_(f)H(P)gtSigmav_(R)Delta_(f)H(R))`
A
If both the statements are TRUE and STATEMENT-2 is the correct explanation of STATEMENT-14
B
If both the statements are TRUE but STATEMENT-2 is NOT the correct explanation of STATEMENT-14
C
If STATEMENT-1 is TRUE and STATEMENT-2 is FALSE
D
If STATEMENT-1 is FALSE and STATEMENT-2 is TRUE
Text Solution
Verified by Experts
The correct Answer is:
C
Topper's Solved these Questions
THERMODYNAMICS
NARENDRA AWASTHI|Exercise Level 1 (Q.1 To Q.30)|6 Videos
THERMODYNAMICS
NARENDRA AWASTHI|Exercise Level 1 (Q.31 To Q.60)|2 Videos
Define and explain the standard enthalpy of formation (Delta_(r)H^(theta)) .
Define and explain the enthalpy of combustion (Delta_(c)H^(theta)) .
(A) : The reaction C + O_(2) rarr CO_(2) is an exothermic reaction Reason (R ): In this reaction that total enthalpy of the product is less than the total enthalpy of the reactants
Which statement are correct for the reaction, NH_(4)NO_(2)overset(Delta)rarrN_(2)+2H_(2)O
For gaseous reaction, if Delta H is the change in enthalpy and Delta U that in internal energy then :
The bond dissociation energy depends upon the nature of the bond and nature of the molecule. If any molecule more than 1 bonds of similar nature are present then the bond energy reported is the average bond energy. Determine C-C and C-H bond enthalpy (in kJ/mol). Given: Delta_(f)H^(0) (C_(2)H_(6),g)= -85kJ//mol, Delta_(f) H^(0) (C_(3)H_(8), g)= -104kJ//mole, Delta_("sub")H^(0) (C,s)= 718kJ//mol , B.E. (H-H)= 436 kJ/mol,
For a reaction , A (g) to A(l) , Delta H = -3RT . The correct statement for the reaction is
In a reversible reaction K_(c) gt K_(p) and Delta H = + 40 K. Cal. The product will be obtained in less amount on
Assertion (A): The enthalpy of formation of H_(2)O_((l)) is greater than that of H_(2)O_((g)) Reason (R ): Enthalpy change is negative for the condensation reaction H_(2)O_((g)) rarr H_(2)O_((l))
In which of the following equations Delta H^(0) reaction equal to Delta H_(f)^(0) for the product?
NARENDRA AWASTHI-THERMODYNAMICS-Level 3 - Match The Column