Answer:
1 Slowest = CO2 at 332K
2 N2 at 395K
3 CH4 at 395K
4 fastest = CH4 at 435K
Explanation:
The molecular speed depends on the temperature and molar mass of the molecules
Speed of CO2 at 332K:
⇒ Molar mass CO2 = 44.01 g/mole
⇒ Temperature = 332 K
332/ 44.01 = 7.544
Speed of CH4 at 435K
⇒ Molar mass CH4 = 16.04 g/mole
⇒ Temperature = 435K
435/16.04 = 27.12
Speed of CH4 at 395K
⇒ Molar mass CH4 = 16.04 g/mole
⇒ Temperature = 395 K
395/16.04 = 24.626
Speed of N2 at 395K
⇒ Molar mass N2 = 28 g/mole
⇒ Temperature = 395 K
395/ 28 = 14.11
1 Slowest = CO2 at 332K
2 N2 at 395K
3 CH4 at 395K
4 fastest CH4 at 435K
In order to compute this, we must first take a couple of assumptions of:
1) The laboratory size so we can calculate its volume
2) The number of students working in the lab so we know the total gas produced
Let the lab be
11 m × 9 m × 6 m
The volume then computes to be:
594 m³
We know that
1 Liter is 1 dm³
1 m = 10 dm
1 m³ = 1000 dm³
Therefore, the room volume in liters is:
594,000 Liters
Let there be 30 students in the laboratory
Total gas being produced:
6 × 30
= 180 Liters
This works out to be:
0.03% of Hydrogen by volume
Therefore, there is no risk of explosion given our assumption of size and students.
The sugar is called solute and water is called solvent. And the sugar and water together is called solution.
Answer:
C. 2&3 created a chemical change
Explanation:
When water evaporates (which involves breaking of hydrogen bonds), it removes energy from its surroundings in a fashion that renders water an Excellent coolant.
Within water molecules, polar covalent connections are created between the hydrogen and oxygen atoms. The shared electrons are attached to the oxygen atom for a longer period of time than they are to the hydrogen atoms. A water molecule has no overall charge, but each hydrogen atom has a little positive charge, and each oxygen atom has a slight negative charge. The slightly positive hydrogen atoms repel one another and form the distinctive shape as a result of these charges. The positive and negative charges in the various regions of each water molecule cause them to attract other water molecules. Additionally, water forms hydrogen bonds with other polar molecules (like sugars) by attraction.
To know more about hydrogen bonds
brainly.com/question/1420470
#SPJ4