Which of the following have `Delta H_(f)^(º) lt 0`

Which of the following have `Delta H_(f)^(º) lt 0`
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Which of the following have `Delta H_(f)^(º) lt 0` A. Ozone B. O(g) C. P(red) D. `S_(8)` (monoclinic)
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Which of the following have `Delta H_(f)^(º) lt 0`

Description : Which of the following have `Delta H_(f)^(º) lt 0`

Last Answer : Which of the following have `Delta H_(f)^(º) lt 0` A. Ozone B. O(g) C. P(red) D. `S_(8)` (monoclinic)

In `Delta ABC`, if `/_ A lt /_B lt 45^(@)`, then ABC is a`//` an `"__________________"` triangle.

Description : In `Delta ABC`, if `/_ A lt /_B lt 45^(@)`, then ABC is a`//` an `"__________________"` triangle.

Last Answer : In `Delta ABC`, if `/_ A lt /_B lt 45^(@)`, then ABC is a`//` an `"__________________"` triangle.

Find the maximum and minimum values of the function `f(x) = (sin x)/(1+ tan x) ,(0 lt x lt 2pi)`.

Description : Find the maximum and minimum values of the function `f(x) = (sin x)/(1+ tan x) ,(0 lt x lt 2pi)`.

Last Answer : Find the maximum and minimum values of the function `f(x) = (sin x)/(1+ tan x) ,(0 lt x lt 2pi)`.

Find the maximum and minimum values of the function `f(x) = x+ sin 2x, (0 lt x lt pi)`.

Description : Find the maximum and minimum values of the function `f(x) = x+ sin 2x, (0 lt x lt pi)`.

Last Answer : Find the maximum and minimum values of the function `f(x) = x+ sin 2x, (0 lt x lt pi)`.

How many orders are correct: (a) H—F lt H-Cl lt H—Br lt H—I (Bond length) (b) H—F lt H—I ltH—Br ltH—I (Acidic strength) (C) H—I H—Br lt H—Cl ltH—F (Bo

Description : How many orders are correct: (a) H—F lt H-Cl lt H—Br lt H—I (Bond length) (b) H—F lt H—I ltH—Br ltH—I (Acidic strength) (C) H—I H—Br lt H—Cl ltH—F (Bo

Last Answer : How many orders are correct: (a) H-F lt H-Cl lt H-Br lt H-I (Bond length) (b) H-F lt H-I ltH- ... power) (f) H-Fgt H-Igt H-Brgt H-Cl (Boiling point)

Dinitrogen gas is evolved when sodium nitrite is heated below `500^(º)C`

Description : Dinitrogen gas is evolved when sodium nitrite is heated below `500^(º)C`

Last Answer : Dinitrogen gas is evolved when sodium nitrite is heated below `500^(º)C` A. alone B. ... chloride C. with sodium chloride D. with potassium nitrate

Dinitrogen gas is evolved when sodium nitrite is heated below `500^(º)C`

Description : Dinitrogen gas is evolved when sodium nitrite is heated below `500^(º)C`

Last Answer : Dinitrogen gas is evolved when sodium nitrite is heated below `500^(º)C` A. alone B. ... chloride C. with sodium chloride D. with potassium nitrate

Newman projection of Butane is given, C-2 is rotated by `120^(º)` along `C_(2)-C_(3)` bond in anticloclwise direction, the conformation formed is :

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The sun rises in Arunachal Pradesh two hours before it does in Dwaraka in Gujarat. This is because the former is (a) higher in elevation than Dwaraka (b) situated further north than Dwaraka (c) situated further east (about 30º longitude) than Dwaraka (d) situated about 30 º east of Dwaraka and the earth rotates from west to east

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Last Answer : Ans: (d)

Assertion :- At constant temp `0^(@)C` and 1 atm, the change `H_(2)O(s)rarr H_(2)O(l)Delta H` and `Delta E` both are zero. Reason :- During isothermal

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If, `H_(2)(g)+Cl_(2)(g)rarr 2HCl(g) , Delta H^(@)=-44` Kcal `2Na(s)+2HCl(g)rarr 2NaCl(s)+H_(2)(g), Delta H=-152` Kcal Then, `Na(s)+0.5Cl_(2)(g)rarr Na

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Using the following thermochemical data. `C(S)+O_(2)(g)rarr CO_(2)(g), Delta H=94.0` Kcal `H_(2)(g)+1//2O_(2)(g)rarr H_(2)O(l), Delta H=-68.0` Kcal `C

Description : Using the following thermochemical data. `C(S)+O_(2)(g)rarr CO_(2)(g), Delta H=94.0` Kcal `H_(2)(g)+1//2O_(2)(g)rarr H_(2)O(l), Delta H=-68.0` Kcal `C

Last Answer : Using the following thermochemical data. `C(S)+O_(2)(g)rarr CO_(2)(g), Delta H=94.0` Kcal `H_(2)(g)+1// ... .0` Kcal C. `-114.0` Kcal D. `+114.0` Kcal

`C_(6)H_(5)NH_(2) overset(NaNO_(2)+HCl)underset(0-5^(@)C) X overset(H_(2)O)underset(Delta)toY,` the product is :

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Consider the following set of reactions : `CHCl_(2)COOH+NaOHrarrCHCl_(2)COONa+H_(2)O " " Delta H_(1) = - 12830` Cal. `HCl + NaOH rarr NaCl + H_(2)O "

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Given that - `2C(s)+2O_(2)(g)rarr 2CO_(2)(g) Delta H = -787 KJ` `H_(2)(g)+ 1//2O_(2)(g)rarr H_(2)O(l) Delta =-286 KJ` `C_(2)H_(2)(g)+(5)/(2)O_(2)(g)ra

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Given that standard heat enthalpy of `CH_(4), C_(2)H_(4)` and `C_(3)H_(8)` are -17.9, 12.5, -24.8 Kcal/mol. The `Delta H` for `CH_(4)+C_(2)Hrarr C_(3)

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Last Answer : Given that standard heat enthalpy of `CH_(4), C_(2)H_(4)` and `C_(3)H_(8)` are -17.9, 12.5, -24.8 Kcal ... . `-30.2` Kcal C. 55.2 Kcal D. `-19.4` Kcal

Calculate the entropy of `Br_(2)(g)` in the reaction `H_(2)(g)+Br_(2)(g)rarr2HBr(g), Delta S^(@)=20.1 JK^(-1)` given, entropy of `H_(2)` and HBr is 13

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`Ph-CH=CH-underset(O)underset(C)-H overset((i) CH_(3)CH_(2)MgBr)to overset((ii) H_(3)O^(o+))to(X) overset(Cu,Delta)to(Y)`

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How many are redox reaction- `{:((i),K_(4)[Fe (CN)_(6)] + "conc."H_(2)SO_(4) overset(Delta)rarr,(ii),"conc." H_(2)SO_(4) + KCl rarr),((iii),"conc." H_

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`Ph-CH=CH-underset(O)underset(C)-H overset((i) CH_(3)CH_(2)MgBr)to overset((ii) H_(3)O^(o+))to(X) overset(Cu,Delta)to(Y)`

Description : `Ph-CH=CH-underset(O)underset(C)-H overset((i) CH_(3)CH_(2)MgBr)to overset((ii) H_(3)O^(o+))to(X) overset(Cu,Delta)to(Y)`

Last Answer : `Ph-CH=CH-underset(O)underset(C)-H overset((i) CH_(3)CH_(2)MgBr)to overset((ii) H_(3)O^(o+))to(X) ... -underset(O)underset(||)(C)-CH=CH-CH_(2)-CH_(3)`

How many are redox reaction- `{:((i),K_(4)[Fe (CN)_(6)] + "conc."H_(2)SO_(4) overset(Delta)rarr,(ii),"conc." H_(2)SO_(4) + KCl rarr),((iii),"conc." H_

Description : How many are redox reaction- `{:((i),K_(4)[Fe (CN)_(6)] + "conc."H_(2)SO_(4) overset(Delta)rarr,(ii),"conc." H_(2)SO_(4) + KCl rarr),((iii),"conc." H_

Last Answer : How many are redox reaction- `{:((i),K_(4)[Fe (CN)_(6)] + "conc."H_(2)SO_(4) overset(Delta)rarr,(ii)," ... ,((ix),"conc." H_(2)SO_(4) + Cu rarr,,):}`

`C_(6)H_(5)-CH_(2)-I overset(NaN_(3))underset(Delta)rarr` Products Reaction is assumed to involve nitrene as intermediate, then various possible produ

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`overset(1.Br_(2)^(-)+KOH, Delta)underset(2.H_(3)O^(o+))rarr` The product of above reaction is:

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The major product formed in the reaction: `overset(p-TsOH("Trace"))underset(C_(6)H_(6).Delta)rarr`

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In the given reaction sequence `C_(6)H_(5)-CH_(2)-NH_(2) overset(CHCl_(3)//Alc.KOH)underset(Delta)rarr [X] overset(H_(2)O //NaOH)rarr [Y],[Y]` will be

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Consider the following reaction `C_(2)H_(5)Ioverset(Delta)underset(X)rarr` (pleasant smelling liquid) X is

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What are X and Y in the reaction `C_(2)H_(4) + H_(2)SO_(4) overset(80^(@)C)rarr X overset(H_(2)O//Delta)rarr Y`

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If `a lt 0` and n is any odd integer, then the sign of `root(n)(a)` is _______

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The roots of the equation `2x^(2) + 3x + c = 0` (where `x lt 0`) could be `"______"`.

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Solve the following inequations `(i) (sinx-2)(2sinx-1) lt 0` `(ii) (2cosx-1)(cosx) le 0` `(iii) sinx+sqrt(3)cosx ge 1` `(iv) cos^(2)x+sinx le 2` `(v)

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Solve the following equation `(i) 5cos2theta+2cos^(2)"(theta)/(2)+1=0`, `-(pi)/(2) lt theta lt (pi)/(2)` `(ii) sin7theta+sin4theta+sintheta=0`, `0 le

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Solve the following inequalities `(i) |log_(3)x|-log_(3)x-3 lt 0` `(ii)(x-1)/(log_(3)(9-3^(x))-3) le 1` `(iii)log_((x-1)/(x-5))(x-2) gt 0` `(iv) log_(

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Solve the following inequalities `(i) log_(5)(3x-1) lt 1` `(ii) (log_(.5)x)^(2)+log_(.5)x-2 le 0` `(iii) log_(3)(x+1)+log_(3)(x+7) ge 3` `(iv)log_(1//

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Solve the following inequalities (where `[*]` denotes greatest integer function and `{*}` represent fractional part function) `(i) [x+[x]] lt 0` `(ii)

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Solve the following rational in equalities `(i) ((x-1)(x+2))/((x-3)(x+3)) lt 0` `(ii) ((1-x)^(3)(x+2)^(4))/((x+9)^(2)(x-8))ge0` `(iii) ((x^(2)-3x+1)^(

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If prices of petrol rises from `40. To `48 per lt., the demand for cars falls from 60 per month to 45 per month, the cross elasticity of petrol and Car is (a) 1.5 ; (b) 1.25 ; (c) 1.0 ; (d) 1.59

Description : If prices of petrol rises from `40. To `48 per lt., the demand for cars falls from 60 per month to 45 per month, the cross elasticity of petrol and Car is (a) 1.5 ; (b) 1.25 ; (c) 1.0 ; (d) 1.59

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The heat of combustion of `CH_(4(g)), C_((g))` and `H_(2(g))` at `25^(@)C` are `-212.4` K cal, -94.0 K cal and -68.4 K cal respectively, the heat of f

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For a reversible process at T = 300K, the volume is increased from `V_(i)=1L` to `V_(f)=10L`. Calculate `Delta H` if the process is isothermal -

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In the above figure ( not to scale ) the sides BA,BC and CA of` Delta ABC` are produced to D,F, and E respectively such that `/_ ACF= 120^(@)` and `/_

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Career Advice - What to do? LT or ST.

Description : Career Advice - What to do? LT or ST.

Last Answer : answer:But you make #1 sound so great….lol I’d go with #2, if that’s what you want to do, don’t second guess yourself too much. And you never know when you’ll be in this good of a position again, living with M&D, small bills, etc..

women like to show and shine in 2021: Jackie mack womes rings.som wonderful creatons.thrill in pure stasis.lt is surprising how this jewelry of simple structure has evolved over the centuries.to be a symbol of especial promise?

Description : women like to show and shine in 2021: Jackie mack womes rings.som wonderful creatons.thrill in pure stasis.lt is surprising how this jewelry of simple structure has evolved over the centuries.to be a symbol of especial promise?

Last Answer : Jackie mack ouro

Lt. Where was General Jagjit Singh Aurora born ?

Last Answer : Lt. Birthplace of General Jagjit Singh Aurora - Kala Gujran , Jhilum District , Punjab , British India.

What physical quantity has dimensions (LT)?

Description : What physical quantity has dimensions (LT)?

Last Answer : The dimension of mass, length and time are represented as [M] [L] [T], so I think those would be Length [L] and time [T] which comes down to LT. Hope this answers your question.

If the roots of a quadratic equation `ax^(2) + bx + c` are complex, then `b^(2) lt "____"`

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Complete set of solution of inequation `(3)/(sqrt(2-x))-sqrt(2-x) lt 2` is

Description : Complete set of solution of inequation `(3)/(sqrt(2-x))-sqrt(2-x) lt 2` is

Last Answer : Complete set of solution of inequation `(3)/(sqrt(2-x))-sqrt(2-x) lt 2` is A. `(-oo,1)` B. `(-oo,1]` C. `(1,oo)` D. `[1,oo)`

Solve the following inequlities `(i) sqrt(x-1) lt x-3` `(ii) sqrt(x-3) gt sqrt(7-x)` `(iii) sqrt (x^(2)+4x+9) gt x +2` `(iv) 4-x lt sqrt(2x-x^(2))` `(

Description : Solve the following inequlities `(i) sqrt(x-1) lt x-3` `(ii) sqrt(x-3) gt sqrt(7-x)` `(iii) sqrt (x^(2)+4x+9) gt x +2` `(iv) 4-x lt sqrt(2x-x^(2))` `(

Last Answer : Solve the following inequlities `(i) sqrt(x-1) lt x-3` `(ii) sqrt(x-3) gt sqrt(7-x)` `(iii) sqrt (x^(2)+4x+ ... (ix) (|x+2|-|x|)/(sqrt(8-x^(3))) ge 0`