Answer:
The smallest particle of an element is called an atom.
One calorie is equal to approximately 4.2 joules.
Answer:
77%
1.98/2.57= 0.770428016 = 77%
The average speed is calculated using the following formula
Where
T = 298 K [room temperature]
m = mass of each molecule of oxygen
mass of one mole of oxygen molecules = 32 g / mol
mass of one molecule of oxygen will be =
mass of one molecule of oxygen will be =
putting values
average speed =
Average speed = 482.19 m / s
average speed = 1735.8 km / h
so approx = 1700 km/h