Assuming 1 metric ton of coal gives heat of combustion equal to 8 kcal and a single fission of `.^(235)U` releases 200 MeV. Calculate the minimum consumption in kg of `.^(235)U` to be heat equivalent ot 100 ton of coal
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The heat of combustion of ethylene at `18^(@)C` and at constant volume is `-335.8` kcal when water is obtained in liquid state. Calculate the heat of
The chemical equation for the combustion of `C_(2)H_(4)` is `underset(1" mole")(C_(2)H_(4)(g))+underset("3 moles")(3O_(3)(g))=underset("2 moles")(2CO_(2)(g))+2H_(2)O(l),DeltaU=-335.8kcal` No. of moles of reactants=(1+3)=4 No. of mols of products=2 So, `Deltan=(2-4)=-2` Given `DeltaU=-335.8kcal,Deltan=-2,R=2xx10^(-3)kcal` and `T=(18+273)=291K` Applying...
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Calculate the heat of formation of benzene from the following data, assuming no resonance. Bond energies : `C-C=83 kcal, C=C=140 Kcal, C-H=99 kcal` `{
We have to calculate of `Delta H` for the reaction `6 C(s)+3H_(2)(g)rarrC_(6)H_(6)(g)` For reactant: Heat of atomisation of `6` moles of `C=6xx170.9 kcal` heat of atomisation of `6` moles of...
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Calculate the standard heat of formation of `C_(10)H_(8)` (naphthalene) if standard heat of combustion of nephathalene is `-123.0 kcal` at 298K and st
Correct Answer - 17.4 kcal
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The heat of combustion of ethyl alcohol is `-300 kcal.` If the heats of formation of `CO_(2)(g)` and `H_(2)O(l)` are`-9.3` and `-68.5 kcal` respective
Correct Answer - `(-94.1 kcal)` `C_(2)H_(6)O+3O_(2)(g)rarr2CO_(2)+3H_(2)O. " "DeltaH= -300 kcal` `DeltaH_(comb)=2Delta H_(f,CO_(2))^(@)+3 DeltaH_(f,H_(2)O)^(@)-DeltaH_(f,C_(2)H_(6)O)` `rArr DeltaH_(f,C_(2)H_(6)O)=2(-94.3)+3(-68.5)+300= -94.1 Kcal`
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The heat of formation of `C_(2)H_(5)OH(l)` is `-66 kcal//"mole"`. The heat of combustion of `CH_(3)OCH_(3) (g)` is -348 kcal/mole. `DeltaH_(f)` for `H
Correct Answer - B `DeltaH_(F)^(o)C_(2)OH_(5)(l)= -66` Kcal/mole `2C+3H_(2)+(1)/(2)O_(2)rarrC_(2)H_(5)OH " " DeltaH= -66 kcal//"mole"`.....(1) `CH_(3)-O-CH_(3)+3O_(2)rarr2CO_(2)+3H_(2)O " "Delta H= -348 kcal//"mole"`.....(2) `[H_(2)(g)+(1)/(2)O_(2)(g)rarrH_(2)O " " DeltaH_(3)-68 kcal//"mole"`.....(3) `[C+O_(2)rarrCO" "Delta H_(4)= -94 kcal//"mole"`......(4) Target equation...
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When an atom of `._(92)U^(235)` undergo fission, about 200 MeV energy is released Suppose that a reactor using `._(92)U^(235)` has an output of 700 MW
Correct Answer - `9.5 xx 10^(24), 3.7` kg
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Calculate the energy released by `1 g` of natural uranium assuming `200 MeV` is released in eaech fission event and that the fissionable isotope `U^23
Correct Answer - `[5.7 xx 10^(8) J]`
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Assuming the splitting of `U^235` nucleus liberates `200 MeV` energy, find (a) the energy liberated in the fission of 1 kg of `U^235` and (b) the mass
Correct Answer - [(a) `8.2 xx 10^(10)kJ, 2.7 xx 10^(6) kg` (b) `1.5 g`]
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Calculate the energy released by fission of 1 g of `._(92)^(235)U`, assuming that an energy of 200 MeV is released by fission of each atom of `.^(235)
Correct Answer - `5.1 xx 10^(23) MeV`
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A uranium nucleus `.^(235)U` liberates 200 MeV per fission 1.5 kg of uranium reacts during explosion of a uranium bomb. What is the mass of an equival
Correct Answer - `3 xx 10^(7) kg`
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