The volume coefficient of thermal expansion for gasoline is 950 × 10-6 K-1. By how many cubic centimeters does the volume of 1.00 L of gasoline change when the temperature rises from 30°C to 50°C?

0.019 L

Explanation:

Let the volume coefficient of thermal expansion be γ

γ= 950 × 10-6 K-1

Initial volume V1= 1.00L

Final volume V2=

Initial temperature θ1 = 30°C

Final temperature θ2 = 50°C

From;

γ= V2-V1/V1 (θ2 - θ1)

Making V2 the subject of the formula;

V2= γ V1(θ2 - θ1) + V1

Substituting values;

V2= 950 × 10^-6 × 1.00(50-30) + 1.00

V2= 1.019 L

Change in volume = V2-V1

Therefore change in volume= 1.019 L- 1.00L = 0.019 L

a small container that holds a source of energy a solar cell that captures light energy and converts it into electricity a voltaic cell that uses the oxidation of a fuel to produce electricity

explanation:

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.