2 years ago

Bài 1. Ở nhiệt độ 17°C, có bao nhiêu phần trăm phân tử khí có các vận tốc sai khác

Physics

1 answer:

Damm [24]2 years ago

7 0

Answer:

hi i only dont understand want ur saying

You might be interested in

Which factors affect heat transfer between a warm and a cool substance?

damaskus [11]

Factors that affect heat transfer are:

1) Difference in temperature,
2) Mass of the object
3) Specific heat of the object

Hope this helps!

8 0

2 years ago

It is known that the kinetics of recrystallization for some alloy obeys the Avrami equation, andthat the value of n in the expon

trapecia [35]

Answer: $8.76\times 10^{-3} min^{-1}$

Explanation:

Given

n=5

0.3 fraction recrystallize after 100 min

According to Avrami equation

$y=1-e^{-kt^n}$

where y=fraction Transformed

k=constant

t=time

$0.3=1-e^{-k(100)^5}$

$e^{-k(100)^5} =0.7$

Taking log both sides

$-k\cdot (10^{10}=\ln 0.7$

$k=3.566\times 10^{-11}$

At this Point we want to compute $t_{0.5}\ i.e.\ y=0.5$

$0.5=1-e^{-kt^n}$

$0.5=e^{-kt^n}$

$0.5=e^{-3.566\times 10^{-11}\cdot (t)^5}$

taking log both sides

$\ln 0.5=-3.566\times 10^{-11}\cdot (t)^5$

$t^5=1.943\times 10^{10}$

$t=114.2 min$

Rate of Re crystallization at this temperature

$t^{-1}=8.76\times 10^{-3} min^{-1}$

3 0

3 years ago

If Dwight races his Chevy towards Chatham and travels 2460 meters in 60 seconds. what is his velocity?

labwork [276]

Answer:

divide

Explanation:

whenever looking for velocity.just devide

8 0

2 years ago

What's the noun in "she is my favorite english teacher"

OleMash [197]

Answer:

i think it is <u>teacher</u>

Explanation:

because it is noun

7 0

3 years ago

Read 2 more answers

All objects within a closed system tend to move

Charra [1.4K]

Explanation is in the file

tinyurl.com/wpazsebu

4 0

3 years ago