Charles law states that volume of gas is directly proportional to volume of gas at constant pressure
parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation
where
V - volume
T - temperature in kelvin
T1 - 123 °C + 273 = 396 K
T2 - 468 °C + 273 = 741 K
substituting the values
V = 38.29 L
new volume is 38.29 L
They are members of Halogens
The electron cloud model describes electrons as the most likely found around the nucleus of an atom. It is also found that electrons could seemingly be everywhere at one time. Albert Einstein, Max Planck and Niels Bohr had done a research and have concluded that electrons transmit energy and that its properties are also linked to light and energy.
Answer:
When the substance is cooled, its temperature will fall below 78 °C after 100% of the vapor has changed to liquid.
Explanation:
- Boiling point is the temperature at which a liquid changes state from liquid form to gaseous form without change in temperature. It may defined as the temperature at which the vapor pressure is equal to the pressure of the gas above the liquid.
- A liquid with a boiling point of 78°C, it means that, when the liquid is heated, its temperature will start rising above 78 °C after 100% of the liquid has changed to vapors. Additionally, when the liquid is cooled, its temperature will fall below 78 °C after 100% of the vapor has changed to liquid.
Answer: Amount of volume needed in Litres is 0.09L
Explanation:
Given that the concentration in Mol/L =3.67M
Mass of K2SO4 = 57.3g
Molar mass of K2SO4 = 174.01g/mol
From stochiometry,
Mole = Mass/Molar mass
Mole = 57.3/174.01= 0.33mol.
Concentration in mol/L=
Mole/volume
3.67=0.33/volume
Volume= 0.33/3.67
Volume = 0.09L
Therefore the volume of K2SO4 needed is 0.09L