P: ?
V: 35,5L = 35,5 dm³
n: 0,54 mol
R: 83,14 hPa·dm³/mol·K
T: 223K
..................
pV = nRT
p = nRT/V
p = (0,54×83,14×223)/35,5
p = 282,02 hPa
When you heat an atom, some of its electrons are "excited* to higher energy levels. When an electron drops from one level to a lower energy level, it emits a quantum of energy. ... The different mix of energy differences for each atom produces different colours. Each metal gives a characteristic flame emission spectrum.
Answer:
The answer to your question is P2 = 1.52 atm
Explanation:
Data
Volume 1 = V1 = 4.54 l
Pressure 1 = P1 = 1.65 atm
Temperature 1 = T1 = 75°C
Volume 2= V2 = 5.33 l
Pressure 2 = P2 = ?
Temperature 2 = 103°C
Process
1.- Convert temperature to °K
Temperature 1 = 75 + 273 = 348°K
Temperature 2 = 103 + 273 = 376°K
2.- Use the combine gas law to find the final pressure
P1V1/T1 = P2V2/T2
-Solve for P2
P2 = P1V1T2 / T1V2
-Substitution
P2 = (1.65 x 4.54 x 376) / (348 x 5.33)
-Simplification
P2 = 2816.62 / 1854.84
-Result
P2 = 1.52 atm
Salt + water
Example :
acid base salt water
↓ ↓ ↓ ↓
HCl <span> + NaOH = NaCl + H</span>₂<span>O
</span>Hydrochloric Acid + Sodium Hydroxide = Sodium Chloride + Water
hope this helps!
Answer:
The total amount of mechanical energy is merely the sum of the potential energy and the kinetic energy. This sum is simply referred to as the total mechanical energy
