Answer:
V = 121.82 L
Explanation:
Given data:
Number of moles of gas = 1.20 mol
Pressure of gas = 3.675 atm
Temperature = 100°C
Volume occupied = ?
Solution:
Formula:
General gas equation:
PV = nRT
R = general gas constant.
Now we will convert the temperature into kelvin.
100+273 = 373 K
V = nRT/P
V = 1.2 mol × 0.0821 atm.L/mol.K × 373 K / 3.675 atm
V = 447.68 / 3.675 atm
V = 121.82 L
Answer:
Helium, this noble gas has the least density at STP
Explanation:
The pH = -log of hydrogen ion concentration
The more acid a solution is the higher is its concentration of H+ ions and the lower is its pH. Acids have a pH lower that 7.
Answer:
Explanation:
1. A measure of how quickly velocity is changing is the acceleration
Acceleration is the rate of change of velocity with time. The rate at which a body is changing its velocity is known as the acceleration.
It is measured in the unit m/s²
2. Speed in a given direction is the velocity
Velocity is a vector quantity which measures the magnitude of motion in a specific direction. It is simply speed in a given direction.
When we say a motorcycle travels at the rate of 5m/s due east, we are describing the velocity of such body.
3. Force that resists moving one object against another is the friction
Friction is a force that opposes motion. It prevents a body from moving.
4. Measure of the pull of gravity on an object Weight
Weight is a measure of the amount of gravitational force on a body. It is mathematically expressed as;
W = mg
W is the weight, m is the mass and g is the acceleration due to gravity
5 Tendency of an object to resist a change in motion is inertia
Inertia is the tendency of body to resist change in motion. It is the ability of a body to remain in a perpetual state of rest.
6 Size is the magnitude
