Mass = that which causes and object to have inertia
Newton’s First Law= a special case of Galileo’s Law of Inertia
Impulse= force multiplied by time
Momentum= velocity multiplied by mass
Velocity= momentum/mass
Newton’s Second Law= the acceleration of a mass directly proportional to the force acting on it
Hi Zyshoun32,
Your Question:
When the contour lines are farther apart, is the slope more gradual or gentle.
Answer:
<u>When the slope is more gradual the farther the contour lines are.</u>
When the slope is more steeper the closer the contour lines are.
It's not the valences electrons themselves, but the number of valence electrons that determines the chemical properties of an element
Heat gained by ice cubes would be equal to the - heat lost by warm water
The moles of ice is: 50.5 g / 18.0 g/mol = 2.81 mol
Heat required to melt all of the ice is equal to: 2.81 mol X 6.02 kJ/mol = 16.9 kJ = 16890 J
Now, know whether the warm water will still be above 0C when it loses this much heat:
-1690 J = 160 g (4.184 J/gC) (Delta T) Delta T = -25C
In order to solve for the final temperature, going back to include warming of the melted ice to a final temperature:
q(ice/water) = - q(warm water)
moles (Delta Hf) + m c (T2-T1) = - m c (T2-T1)
50.5 g / 18.0 g/mol = 2.81 mol
2.81 mol X 6.02 kJ/mol + 50.5g (4.184 J/gC) (T2-0) = -160g (4.184 J/gC) ( T2-80)
16916 + 211.3T2 = -669.4 T2 + 53555
36639 = 880.7 T2
T2 = 41.6 C
