If 27 g of water is formed during comple...

If 27 g of water is formed during complete combustion of pure propene `(C_(3)H_(6))`, the mass of propene burnt is :

42g

21g

14g

56g

Text Solution

Verified by Experts

The correct Answer is:

`underset(42g)(CH_(3)CH)= CH_(2) + 9//2O_(2) rarr 3CO_(2) + underset(3 xx 18 =54g)(3H_(2)O)`
54 g of `H_(2)O -= 42g` of propene
`therefore 27g` of `H_(2)O = (42)/(54) xx 27= 21g`

Topper's Solved these Questions

THERMODYNAMICS AND THERMOCHEMISTRY
ERRORLESS|Exercise NCERT Based Questions (Bond Energy)|15 Videos
THERMODYNAMICS AND THERMOCHEMISTRY
ERRORLESS|Exercise NCERT Based Questions (Free Energy and Work Function) |37 Videos
THERMODYNAMICS AND THERMOCHEMISTRY
ERRORLESS|Exercise NCERT Based Questions (IInd & IIIrd Law of Thermodynamics and Entropy)|41 Videos
THE S-BLOCK ELEMENTS
ERRORLESS|Exercise Assertion & Reason|10 Videos

Similar Questions

Explore conceptually related problems

If 12 g of water is formed during complete combustion of pure propene (C_(3)H_(6)) , the mass of propene burnt is :

If 27g of water is formed during complete combustion of pure propene ( C_(3)H_(8) ), the mass of propene burnt is

The intermediate formed during the addition of HCl to propene in the presence of peroxide is

At 25^(@) C for complete combustion of 5 mol propane (C_(3)H_(8)) . The required volume of O_(2) at STP will be .

The intermediate formed during the addition of HCl to propene in the presence of a peroxide is

At STP , for complete combustion of 3 g C_(2)H_(6) the required volume of O_(2) will be -

Calculate the amount of heat evolved during the complete combustion of 100 ml of liquid benzene from the following data. (i) 18 g of graphite on complete combustion evolve 590 KJ heat (ii) 15889 KJ heat is required to dissociate all the molecules of 1 litre water into H_(2) and O_(2) (iii) The heat of formation of liquid benzene is 50 KJ//mol (iv) Density of C_(6)H_(6)(l)=0.87 g//ml

Molality of pure liquid benzene (C_(6)H_(6)) if its density d=1.2g//ml is :

ERRORLESS-THERMODYNAMICS AND THERMOCHEMISTRY-NCERT Based Questions (Heat of Reaction)

If (i) C+ O(2) rarr CO(2), (ii) C +1//2O(2) rarr CO, (iii) CO+ 1//2O(2...
Text Solution
|
Given: i. 2Fe(s) +(3)/(2)O(2)(g) rarr Fe(2)O(3)(s), DeltaH^(Theta) =...
Text Solution
|
If 27 g of water is formed during complete combustion of pure propene ...
Text Solution
|
Which of the following equations corresponds to the definition of enth...
Text Solution
|
Heat of neutralization of strong acid against strong base is constant ...
Text Solution
|
The enthalpies of formation of Al(2)O(3) and Cr(2)O(3) are -1596KJ and...
Text Solution
|
Sodium chloride is soluble in water but not in benzene because
Text Solution
|
One mole of NaCl((s)) on melting absorbed 30.5 kJ of heat and its entr...
Text Solution
|
During complete combustion of one mole of butane ,2658Kj of heat is...
Text Solution
|
delta(f) U^(Ө) "of formation of" CH(4)(g) at a certain temperature is ...
Text Solution
|
Enthalpy of sublimation of a substance is equal to :
Text Solution
|
The enthalpy of certain reaction at 273 K is -20.75 kJ. The enthalpy o...
Text Solution
|
0.06 mole of KNO(3) is added to 100cm^(3) of water at 298 K. The entha...
Text Solution
|
The average molar heat capacities of ice and water are respectively 37...
Text Solution
|
The enthalpy of solution of sodium chloride is 4 kJ mol^(-1) and its e...
Text Solution
|
If C+O(2) to CO(2)+94.2kcal H(2)+(1)/(2)O(2) to H(2)O+68.3"kcal" ...
Text Solution
|
The standard enthalpies of combustion of C(6)H(6(l)), C((" graphite"))...
Text Solution
|
The standard molar heat of formation of ethane CO2 and water (l) are r...
Text Solution
|
Which of the following fuels has the highest calorific value ?
Text Solution
|
The heat of neutralisation of a strong acid and a strong alkali is 57....
Text Solution
|