Biology; Chemistry; Physics: Post your doubts here!

[MustafaMotani]

ashiqbal dost us men products to diay hai na

 

[syed1995]

what question were you answering ??

And now that we are on the topic ..

N2(g) + H2(g) <--> NH3(g)

If forward reaction is exothermic ..

then decreasing the temperature and increasing the pressure will make more Ammonia ...?

I haven't grasped the concept behind applying pressure on gases, where to decrease and where to increase .. can ya help me out there??

^^
ashiqbal
MustafaMotani

 

[multixamza01]

Imran Merchant Guess :

Nylon, Terylene , Cracking, Dehydration, Extraction of Iron, Extraction of Iron, Aluminium, Ionic Lattice Drawing, Polypropene (and all others), Fractional distillation of crude oil, Reduction of Metal oxides, Electrolysis, Exothermic , Endothermic. Covalent Molecule Drawing . Dynamic Equilibrium, diamond, graphite, oxides, isomerism Carbon cycle, Pollution.

Funny Guess! Moles to hai hi nai

Don't rely on it , though! Better to do everything !

 

[ashiqbal]

ashiqbal help!! where does nitrogen go...i mean it came from air but why were first Few rejected air to disappear nahin hoti???

actually, it was something like this that only water or nitrogen could contaminate solution. But if collection above water is used, it means that it doesnt matter that the sample is contaminated by water!
and about N2, i think that after 2 or three reactions, the nitrogen in flask is replaced with gas to be collected, as all nitrogen is collected in test tube.

 

[a.abid]

wat is dynamic equiliibrium?

 

[syed1995]

Imran Merchant Guess :

Nylon, Terylene , Cracking, Dehydration, Extraction of Iron, Extraction of Iron, Aluminium, Ionic Lattice Drawing, Polypropene (and all others), Fractional distillation of crude oil, Reduction of Metal oxides, Electrolysis, Exothermic , Endothermic. Covalent Molecule Drawing . Dynamic Equilibrium, diamond, graphite, oxides, isomerism Carbon cycle, Pollution.

Funny Guess! Moles to hai hi nai

Don't rely on it , though! Better to do everything !

Imran Merchant ka guess hai .. soonay jaanay say bilkul pahlay hi dekhoonga .. After all my tayyari

 

[malay]

w11_qp21 Q8 (a)(ii)
http://www.xtremepapers.com/papers/CIE/Cambridge International O Level/Chemistry (5070)/5070_w11_qp_21.pdf
ab rona mat kai yeh kahan sai aa gaya! i tod you so!

is mein ronay ki kia bat ha sab kuch to is mein given ha
aur waisay they r checkin ur understandin abou writin equations nothin abou complex salts

 

[ashiqbal]

Answer tu question mein diya hua hai aur mjh say pooch rahay ho .. :\

"The products of the reaction are aqueous sodium aluminate, NaAlO2, and water."

ashiqbal dost us men products to diay hai na

sorry yar main so gaya tha solve kartay huay

 

[bogus]

actually, it was something like this that only water or nitrogen could contaminate solution. But if collection above water is used, it means that it doesnt matter that the sample is contaminated by water!
and about N2, i think that after 2 or three reactions, the nitrogen in flask is replaced with gas to be collected, as all nitrogen is collected in test tube.

so when we reject tube and place a new tube phir nitrogen nahin aye ga? Stupid question hai but im puzzled thanks for ur reply

 

[MustafaMotani]

^^
ashiqbal
MustafaMotani

Simple hai reversible reactions mein jahan per volume of gas kam ho waha forward reaction barh jaega pressure barha ne se
e.g 3H2 + N2 = 2NH3
yaha reactants ka volume 4 hai (3+ 1) aur product ka 2 so increasing pressure would increase forward reaction! agr reactants ka volume kam hota aur product ka ziada hota to forward reaction barhanay k liye pressure reduce karna parta

 

[syed1995]

wat is dynamic equiliibrium?

the state when the forward reaction equals the backward reaction .. that state is called dynamic equilibrium.

 

[Mayedah]

wat is dynamic equiliibrium?

When the rate of forward reaction is equal to backward reaction !

 

[MustafaMotani]

so when we reject tube and place a new tube phir nitrogen nahin aye ga? Stupid question hai but im puzzled thanks for ur reply

No q k wo nitrogen actually us conical flask se araha tha aur wo sealed hai... jab do teen tube badal lenge to nitrogen khatam hojaega

 

[ashiqbal]

so when we reject tube and place a new tube phir nitrogen nahin aye ga? Stupid question hai but im puzzled thanks for ur reply

nahin, maybe kuch conditions change ki hon gi, but mainly, yahan pai elimination method use hoga, kai aur koi optionj nahin hosakta to iss liay yeh option.

 

[syed1995]

Simple hai reversible reactions mein jahan per volume of gas kam ho waha forward reaction barh jaega pressure barha ne se
e.g 3H2 + N2 = 2NH3
yaha reactants ka volume 4 hai (3+ 1) aur product ka 2 so increasing pressure would increase forward reaction! agr reactants ka volume kam hota aur product ka ziada hota to forward reaction barhanay k liye pressure reduce karna parta

Tu agar reactants ka volume kum ho aur products ka ziyada .. and we want more products we will decrease the pressure ..

aur agar reactants ka ziyada ho aur products ka kum .. tu reactants ka pressure increase karnay say product ziyada bunnay ga ?

aur agar reactants ka volume kum ho aur products the ziyada ho .. and we want more reactants we will increase the pressure?

 

[MustafaMotani]

Tu agar reactants ka volume kum ho aur products ka ziyada .. and we want more products we will decrease the pressure ..

aur agar reactants ka ziyada ho aur products ka kum .. tu reactants ka pressure increase karnay say product ziyada bunnay ga ?

aur agar reactants ka volume kum ho aur products the ziyada ho .. and we want more reactants we will increase the pressure?

 

[multixamza01]

Me unfollowing the thread . You guys are asking questions non stop .

 

[ashiqbal]

Tu agar reactants ka volume kum ho aur products ka ziyada .. and we want more products we will decrease the pressure ..

aur agar reactants ka ziyada ho aur products ka kum .. tu reactants ka pressure increase karnay say product ziyada bunnay ga ?

aur agar reactants ka volume kum ho aur products the ziyada ho .. and we want more reactants we will increase the pressure?

yes!

 

[syed1995]

nahin, maybe kuch conditions change ki hon gi, but mainly, yahan pai elimination method use hoga, kai aur koi optionj nahin hosakta to iss liay yeh option.

I use elimination method for almost every question!! answers ki mistakes nikal aati hain !!!

 

[ashiqbal]

Me unfollowing the thread . You guys are asking questions non stop .

no one forced you to stay here.