Обём ведра - 10л. сколько ведер вмещает аквариум, длина которого - 30 см, ширина - 30 см и высота - 40 см? ответ: ? ведра(ведер ответ округли до десятых!

1л = 1 дм^3 = 1000 см^3

объем аквариума = 30*30*40 =36000 см*3 =36л

1 ведро = 10л, следовательно, аквариум = 3.6 ведра

ответ 3.6

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1. P = n k T ; V^2 = 3RT / M => T = MV^2 / 3R 

P = n k M V^2 / 3R => n = 3 R P / k M V^2 = 3*8,31*10^4 / 1,38*10^-23*2*10^-3*64*10^4=24,93*10^4 / 176,64*10^-22 = 0,141*10^26 мол-л/м^3

2. n = N / V; N = m / m0; m0 = M / Na

n = p Na / M = 0,13*6*10^23 / 32*10^-3 = 0,0243*10^26 мол-л/м^3

3. Ek=3/2 * k T; V^2= 3RT / M => T = M V^2 / 3R

Ek = 1,5 k M V^2 / 3R = 1,5*1,38*10^-23*32*10^-3*25*10^4 / 3*8,31 = 1656*10^-22 / 24,93 = 66,425*10^-22 Дж

4. P = 2/3 * Ek n = 2*5*10^-23*16*10^25 / 3 = 53,3*10^2 Па