Answer:
The main difference between distillation and fractional distillation are:Simple distillation separate liquid with boiling point gaps of at least 50 degrees whereas fractional distillation separates liquid with closer boiling point.
Explanation:
<h2>hope it helps</h2>
Answer:
No, it does not follow
Explanation:
The law of consevation of matter states that matter can neither be created nor destroyed. Hence, in a closed system involving a physical or chemical reaction, the amount of matter (mass) present in the reactants must equate the amount of matter in the products.
i.e. mass of reactants = mass of products
In the chemical reaction in the image, sodium reacts with hydrogen chloride (reactants) to give sodium chloride and hydrogen gas (products). That is,
Na(s) + HCl(aq) ------> NaCl(aq) + H2(g)
According to the image, the mass of Na= 14.25g, HCl= 9.50g, {NaCl + H2} = 22.98g
The mass of the reactants is 14.25+9.50= 23.75g
Mass of products= 22.98g
The mass of reactants and products are not equal and hence, does not follow the law of conservation of matter.
<span>Soln:
•t: in min
•Q(t): quantity of dye in the tank at time t
•r in= 0: rate of dye poured into the tank per min. Since it is fresh water, so it
is zero.
•r out= density of dye×rate of fluid =Q/900×9: rate of dye flowing out.
•Q(0) = 1×900 g: initial amount of dye in the tank.
•{dQ/dt=rin-rout= 0-Q100 Q(0) = 900g•Q(t)=Ce-1/100t
•Q(0) = 900, C= 900, Q(t) = 900e-1/100t
•Q(t) = 0.01·Q(0), Q(0)e-1/100t= 0.01×Q(0),-t100= ln 0.01, t= 460min</span>