Explanation:
a) Boyle's law states that pressure is inversely proportional to the volume of the gas at constant temperature.
(At constant temperature)
The equation given by this law is:
where,
are initial pressure and volume respectively.
are final pressure and volume respectively.
b) A graph of the relationship is attached as an image.
The correct answer option is A) benzene.
<u>Explanation:</u>
Benzene is an organic chemical compound (hydrocarbon), consisting of 6 carbon atoms and 6 hydrogen atoms.
Out of all the given options, Benzene will solidify the earliest before reaching a temperature of 0 degree Celcius, when cooled.
The reason being that it has a freezing temperature of 5.5 degree Celcius while all other substances have their freezing points which are below 0 degree Celcius.
I think the answer is B, the metal loses valence electrons to the nonmetal.
Answer: 565.245kJ
To answer this question, you need to know how much water heat capacity which was 4.187 kJ/kg K. First, we need to find the calorie absorbed by water. Since the sample is 1kg, the initial temperature is 21 ∘C and final temperature is 34.5 <span>∘C then the calculation would be:
Energy= (Final temp - initial temp) * heat capacity * mass
Energy = (34.5-21) </span>∘C * 4.187 * kJ/kg K * 1kg= 56.5245 kJ
The energy is made from 0.1 gram, then for 1 gram of energy it should be:
1 gram/ 0.1gram x 56.5245 kJ= 565.245kJ