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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

Gazning o’zgarmas hajmida sodir bo'ladigan bir holatdan boshqa holatga o'tish jarayoni ……. jarayon deyiladi

A) izotermik

B) adibatik

C) izobarik

D) izoxorik

2 / 25

Moddaning bir moldagi atomlar yoki molekulalar soni ........ doimiysi deb ataladi, va uning qiymati ....?

A) Avogadro 6*10²⁶ 1/ mol

B) Avogadro 6*10³⁴ 1/ mol

C) Avogadro 6*10²⁴ 1/ mol

D) Avogadro 6*10²³ 1/ mol

3 / 25

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

A) D = C / π

B) D = m / V

C) D = 2 – R

D) D = V / S

4 / 25

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

A) adibatik

B) izotermik

C) izobarik

D) izaxorik

5 / 25

Selsiy shkalasining nol nuqtasi nimani bildiradi

A) Suvning kritik temperaturasi

B) Suvning qotish temperaturasi

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

D) Suvning qaynash temperaturasi

6 / 25

Izoxorik jarayon uchun termodinamikaning 1-qonuni

A) ΔU=-A

B) Q=A

C) Q= ΔU

D) Q= ΔU+A

7 / 25

1 m³ suvda necha molekula bor?

A) 6 * 10²³

B) 3,3 * 10²⁸

C) 5 * 10²⁵

D) 10⁵

8 / 25

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

A) V₂ = P₁ V₁ T ₂ / T₁ P₂

B) V₂ = T₁ T₂ V₁ / P₁ P₂

C) V₂ = T₁ P₂ / P₁ V₁ T₂

D) V₂ = R₁ P₂ V₁/ T₁ T₂

9 / 25

150 gradus S tempratura Kelvin shkalasida nimaga teng

A) 423 K

B) -423 K

C) 123 K

D) -123 K

10 / 25

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

A) T = 273 - t

B) T = - t - 273

C) T = t + 273

D) T = t- 273

11 / 25

Havodagi suv bug’larining to'yingan holda o'tadigan tempraturasi …………. deyiladi

A) shudring tempraturasi

B) qaynash tempraturasi

C) absolyut tempraturasi

D) bug’lanish tempraturasi

12 / 25

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

A) ν (nyu) = N / Na

B) ν (nyu) = 1 / T

C) ν (nyu) = m / M

D) ν (nyu) = Nm / M

13 / 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) P=3,14

D) R=8,31 J/mol K

14 / 25

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

A) 260°C

B) 293°C

C) 203°C

D) 190°C

15 / 25

Dinamika so‘zining ma’nosi nima

A) mashina

B) harakat

C) bo‘lak, parcha

D) kuch

16 / 25

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

A) Avogadro

B) Gey – Lyussak

C) Boyl-Mariott

D) Sharl’

17 / 25

Selsiy shkalasining nol nuqtasi nimani bildiradi

A) Suvning qaynash temperaturasi

B) Suvning kritik temperaturasi

C) Suvning qotish temperaturasi

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

18 / 25

1 m ³ suvda necha molekula bor?

A) 5 * 10²⁵

B) 3,3 * 10²⁸

C) 6 * 10²³

D) 10⁵

19 / 25

Moddalarnin issiqlik almashinishi natijasida tempraturalarga tenglashishi ...deyiladi

A) tempratura

B) ideal gaz

C) issiqlik muvozanati

D) to’yingan bug’

20 / 25

Moddaning bir moldagi atomlar yoki molekulalar soni ........ doimiysi deb ataladi, va uning qiymati ....?

A) Avogadro 6*10²³ 1/ mol

B) Avogadro 6*10²⁶ 1/ mol

C) Avogadro 6*10³⁴ 1/ mol

D) Avogadro 6*10²⁴ 1/ mol

21 / 25

Birinchi bo’lib gaz molekulalarining harakat tezligini kim aniqlagan?

A) L.Bolsman

B) Avogadro

C) O.Shtern

D) J.Maksvel

22 / 25

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

A) gaz xolat tenglamasi

B) issiqlik balansi

C) tempratura muvozanati

D) issiqlik muvozanati

23 / 25

Quyidagi keltirilgan formulalardan Mendelev Klapeyron tenglamasini ko’rsating

A) pV=RT

B) pV=m/MRT

C) pV=T/=const

D) p=2/3 nEk

24 / 25

Gapni davom ettiring. Moddaning 1 moliga to’g’ri kelgan massani kg (gr)larda ifodalangan qiymatiga ….deyiladi

A) modda

B) nisbiy molekulalar massa

C) moda miqdori

D) molar massasi

25 / 25

Molekulalarning xarakat tezliklarini tajribada birinchi bo'lib ....... aniqlanadi

A) Avogadro

B) Shtern

C) Maksvell

D) Broun

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