Chemistry-
General
Easy
Question
The value of ΔHforthecombustionofC(s)is –94.4Kcal.TheheatofformationofCO2(g)is-
- –49.5Kcal
- –94.4Kcal
- –188.0Kcal
- Moredatarequired
The correct answer is: –94.4Kcal
Related Questions to study
chemistry-
The following are the heats of reactions-
i)ΔHOofHO(l)=–68.3Kcalmol–1
ii)ΔHO comb ofC2H4 =–337.2Kcalmol–1
iii) ΔHO comb ofC2H4 =–363.7Kcalmol–1Then heat change for the reaction
C2H2+H2→C2H4is-</span
The following are the heats of reactions-
i)ΔHOofHO(l)=–68.3Kcalmol–1
ii)ΔHO comb ofC2H4 =–337.2Kcalmol–1
iii) ΔHO comb ofC2H4 =–363.7Kcalmol–1Then heat change for the reaction
C2H2+H2→C2H4is-</span
chemistry-General
chemistry-
Theheatevolvedduringthecombustionof112litre of water gas(mixtureofequalvolumeofH2andCO)
is: Given
H2(g)+1/2O2(g)=H2O(g);ΔH=–241.8KJ
CO(g)+1/2O2(g)=CO2(g);ΔH=–283KJ</span
Theheatevolvedduringthecombustionof112litre of water gas(mixtureofequalvolumeofH2andCO)
is: Given
H2(g)+1/2O2(g)=H2O(g);ΔH=–241.8KJ
CO(g)+1/2O2(g)=CO2(g);ΔH=–283KJ</span
chemistry-General
physics
What is the relation between figure of merit (K) and current sensitivity 
?
What is the relation between figure of merit (K) and current sensitivity ?
physicsGeneral
chemistry-
For the reaction,
i)H2(g)+Cl2(g)→2HCl(g)+xKJ
ii)H2(g)+Cl2(g)→2HCl(
)+Ykj Which one of the following statementis correct:
For the reaction,
i)H2(g)+Cl2(g)→2HCl(g)+xKJ
ii)H2(g)+Cl2(g)→2HCl()+Ykj Which one of the following statementis correct:
chemistry-General
chemistry-
Heatofformation,ΔHOofanexplosivecompound likeNCl3is-</span
Heatofformation,ΔHOofanexplosivecompound likeNCl3is-</span
chemistry-General
chemistry-
A reaction A+B→ C+D+q is found to have a positive entropy change, there action will be–
A reaction A+B→ C+D+q is found to have a positive entropy change, there action will be–
chemistry-General
chemistry-
What is the sign of ΔGfortheprocessoficemelting at283K?
What is the sign of ΔGfortheprocessoficemelting at283K?
chemistry-General
chemistry-
At acertain temperature T, the end other micreaction A→B proceed salmost to completion. The entropy change is-
At acertain temperature T, the end other micreaction A→B proceed salmost to completion. The entropy change is-
chemistry-General
physics
An ammeter of range 5 A is to be converted into an ammeter of range 10 V If the resistance of anmeter be ,then what resistance should be connected in series with it?
An ammeter of range 5 A is to be converted into an ammeter of range 10 V If the resistance of anmeter be ,then what resistance should be connected in series with it?
physicsGeneral
chemistry-
In the above sequence A & B respectively are –
In the above sequence A & B respectively are –
chemistry-General
chemistry-
In a set of the given reactions, acetic acid yielded a product C.
product C would be:-
In a set of the given reactions, acetic acid yielded a product C. product C would be:-
chemistry-General
chemistry-
Forareaction2X(s)+2Y(s)→2C()+D(g)Theqp at27°Cis–28Kcal.mol–1 The qv is..........K.Cal. mol–1
Forareaction2X(s)+2Y(s)→2C()+D(g)Theqp at27°Cis–28Kcal.mol–1 The qv is..........K.Cal. mol–1
chemistry-General
chemistry-
For the reversible is other mal expansion of one mole of an ideal gas at300K,fromavolumeof10dm3to
20dm3,ΔH is-
For the reversible is other mal expansion of one mole of an ideal gas at300K,fromavolumeof10dm3to
20dm3,ΔH is-
chemistry-General
chemistry-
For the gaseousre action involving the complete combustion of isobutane-
For the gaseousre action involving the complete combustion of isobutane-
chemistry-General
chemistry-
ΔHfC2H4=12.5KcalHeatofatomisationofC=171kcal Heat of atomisation of H=52.1kcal Bond energy C–H=99.3kcal
What is C=C bond energy?
ΔHfC2H4=12.5KcalHeatofatomisationofC=171kcal Heat of atomisation of H=52.1kcal Bond energy C–H=99.3kcal
What is C=C bond energy?
chemistry-General
