believe in fairy stories. At first there were only a few, but in a week or two the country was simply running alive with dragons of all sizes, and in the air you could sometimes see them as thick as a swarm of bees. They all looked alike except as to size. They were green with scales, and they had four legs and a long tail.
Explanation:
YOUR WELCOME :)
Here’s my work to your question. If you need clarification feel free to drop something in the comment section.
Answer:
assume nitrogen is an ideal gas with cv=5R/2
assume argon is an ideal gas with cv=3R/2
n1=4moles
n2=2.5 moles
t1=75°C <em>in kelvin</em> t1=75+273
t1=348K
T2=130°C <em>in kelvin</em> t2=130+273
t2=403K
u=пCVΔT
U(N₂)+U(Argon)=0
<em>putting values:</em>
=>4x(5R/2)x(Tfinal-348)=2.5x(3R/2)x(T final-403)
<em>by simplifying:</em>
Tfinal=363K
A mixture is a combination of two or more elements that can be separated using physical means such as filtration, evaporation,...etc
A mixture can be one of two types:
1- homogeneous mixture where you cannot identify the elements easily by the naked eye. Example is sugar and water mixture.
2- heterogeneous mixture where you can easily identify the elements through naled eye.
Example is mixture of rocks and sand.
Based on the above, you can easily infer that:
a heterogeneous mixture is a mixture in which the components retain their identity.
Huh? Wheres the question at?