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9-sinf Fizika 2-chorak

InfoMaster

May 21, 2021

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9-sinf Fizika 2-chorak

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1 / 25

Azotning molyar massasi 0,028 kg/mol. Azot molekulasining massasi nimaga teng

A) 4,6 * 10¯²³ g

B) 4,6 * 10¯²⁴ g

C) 56 * 10¯²³ g

D) 4,6 * 10¯⁴² g

2 / 25

Jismdagi modda miqdori undagi molekulalar sonini Avogadro doimiysi nisbatiga teng. Shu formulani ko'rsating

A) ν (nyu) = 1 / T

B) ν (nyu) = N / Na

C) ν (nyu) = Nm / M

D) ν (nyu) = m / M

3 / 25

Termodinamikaning 1-qonuni formulasi

A) Q= l m

B) Q=A+ΔU

C) Q=cm Δt

D) Q=L m

4 / 25

Selsiy shkalasidagi t temperatura Kelvin shkalasidagi tempratura bilan bog’lanish formulasi …. ?

A) T = t- 273

B) T = t + 273

C) T = 273 - t

D) T = - t - 273

5 / 25

Selsiy shkalasining nol nuqtasi nimani bildiradi

A) Suvning qaynash temperaturasi

B) Tabiatda bo’lishi mumkin bo'lgan eng past temperatura

C) Suvning qotish temperaturasi

D) Suvning kritik temperaturasi

6 / 25

150 gradus S tempratura Kelvin shkalasida nimaga teng

A) 423 K

B) 123 K

C) -123 K

D) -423 K

7 / 25

Suv sirtida moy tomchisi yoyilishidan foydalanib, molekula diametrini qaysi formuladan o'lchanishi mumkin

A) D = 2 – R

B) D = V / S

C) D = C / π

D) D = m / V

8 / 25

Izoxorik jarayon uchun termodinamikaning 1-qonuni

A) Q= ΔU

B) ΔU=-A

C) Q=A

D) Q= ΔU+A

9 / 25

m= const, V=const bo’lganda P/T =const. Bu ifodalar qaysi qonunga talluqli

A) izaxorik

B) izobarik

C) adibatik

D) izotermik

10 / 25

Klapeyron - Mendelev tenglamashini ko’rsating

A) Pm = vRT/M

B) PV = mRT/M

C) Pr = mRT/v

D) PV = RT/M

11 / 25

P1 V1 / T1 = P2 V2 / T2 formuladan V2 ifodasini toping

A) V₂ = R₁ P₂ V₁/ T₁ T₂

B) V₂ = T₁ T₂ V₁ / P₁ P₂

C) V₂ = T₁ P₂ / P₁ V₁ T₂

D) V₂ = P₁ V₁ T ₂ / T₁ P₂

12 / 25

Universal gaz doimiysining qiymati va o'lchov birligini ko'rsating

A) R=8,31*10³ J/mol K

B) K=1,38 J/K

C) R=8,31 J/mol K

D) P=3,14

13 / 25

Birinchi bo’lib gaz molekulalarining harakat tezligini kim aniqlagan?

A) O.Shtern

B) J.Maksvel

C) Avogadro

D) L.Bolsman

14 / 25

Moddalarning issiqlik almashinishi ish natijasida tempraturalari tenglashishiga ......... aytiladi

A) issiqlik balansi

B) gaz xolat tenglamasi

C) issiqlik muvozanati

D) tempratura muvozanati

15 / 25

Sabzavotlarni tuzlash qaysi fizik hodisaga asoslangan

A) Qaynash

B) Bug'lanish va Qaynash

C) Diffuziya

D) Bug'lanish

16 / 25

O’simlik moyi suyuqlik ustida cheksiz yoyila oladimi

A) Moy qatlami qalinligi eng kichik zarraning kundalang kesimiga tenglashguncha yoyiladi

B) Moy qatlamining qalinligiga bog'liq

C) Cheksiz yoyiladi

D) Cheksiz yoyilmaydi

17 / 25

Ochiq idishdagi 20⁰C tempraturali gazning zichligini 2marta kamaytirish uchun, uning tempraturasini qanchaga orttirish kerak

A) 260°C

B) 293°C

C) 190°C

D) 203°C

18 / 25

Tempraturani o’lchash uchun qanday asbobdan foydalaniladi

A) gigrometr

B) termometr

C) Barometr

D) psixrometr

19 / 25

Diffuziya tezligi nimaga bog’liq

A) modda miqdoriga

B) Modda tempraturasiga

C) tashqi bosimga

D) modda zichligiga

20 / 25

Selsiy shkalasining nol nuqtasi nimani bildiradi

A) Suvning kritik temperaturasi

B) Suvning qaynash temperaturasi

C) Tabiatda bo’lishi mumkin bo'lgan eng past temperatura

D) Suvning qotish temperaturasi

21 / 25

O’zgarmas temperaturada berilgan massali gaz hajmining unga mos kelgan bosimiga ko’paytmasi o’zgarmas kattalik . Bu qonun ……….. qonuni.?

A) Gey – Lyussak

B) Sharl’

C) Avogadro

D) Boyl-Mariott

22 / 25

1 m ³ suvda necha molekula bor?

A) 5 * 10²⁵

B) 10⁵

C) 3,3 * 10²⁸

D) 6 * 10²³

23 / 25

Ideal gaz haroratining 2marta ko’tarilishi hajm birligidagi molekulalar sonining 2marta kamayishiga olib kelagan bo’lsa, uning bosimi qanday o’zgaradi

A) 5marta kamayadi

B) 4marta ortadi

C) 2marta kamayadi

D) O’zgarmaydi

24 / 25

Molekulalar kinetik nazariyaning asosiy qoidalari qaysi javobda to’liq bayon qilinngan

A) Modda mayday bo’laklardan tuziladi va ular fazoni uzluksiz to’ldiradi

B) Modda elementlar zarralardan tuziladi va ular bir-biriga to’xtovsiz aylanib turadi

C) Moddalar mayda zarralar- molekulalar va atomlardan tashkil topgan, ular tartibsiz va to’xtovsiz harakatda, atom va molekulalar bir-birlari bilan o’zaro ta’sirda, moddalarning xossalari shu molekulalar harakati va o’zaro ta’siri biolan belgilanadi

D) Modda m ayday zarralardan tashkil topgan va ular orasida o’zaro ta’sir kuchlari mavjud

25 / 25

Suv sirtida moy tomchisi yoyilishidan foydalanib, molekula diametrini qaysi formuladan o'lchanishi mumkin

A) D = m / V

B) D = C / π

C) D = V / S

D) D = 2 – R

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9-sinf Fizika 2-chorak

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71%-85% 4 baho

56%-70% 3 baho

55% va kamiga 2 baho

Author: InfoMaster

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