Products made of plastic can last a very long time. Explain both the positive and negative effects of plastic being long-lasting
1 answer:
You might be interested in
The mass of cadmium sulfide produced on reacting of cadmium with
of sulfur =
of cadmium forms
cadmium sulfide.
So, of cadmium will give
of cadmium sulfide.
Answer:
The heat of vaporization in kJ/mol of methanol
= 3.48 kJ/mole
Explanation:
Here,the heat of vaporization in kJ/mol is asked to calculate.<em><u>This means it is asked to calculate heat required for 1 mole of methanol.</u></em> Since the substance<em> vaporizes </em>, so this is called <u>heat of vaporization.</u>
Divide the thermal energy with the number of moles .
This is simple mathematics :
If 2.50 mol of liquid require = 8.70 kJ of energy
Then, 1 mole will need =
= 3.48 kJ/mole
<em><u>Follow the units :</u></em>
The heat of vaporization in kJ/mol of methanol is asked.
Unit = kJ /Mole