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2 years ago

Which of the following is the best example of kinetic energy being transformed into potential energy?

Chemistry

1 answer:

galben [10]2 years ago

5 0

Answer:

The correct answer is A

Explanation:

That water stops moving once it gets to the dam and turns into potential energy

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What is meant by conversion of energy

MissTica

the process of changing one form of energy into another

4 0

2 years ago

Glacier National Park in Montana is approximately 4,100 ft above sea level with an atmospheric pressure of 681 torr. At what tem

lapo4ka [179]

Answer : The temperature of liquid is, 369.9 K

Explanation :

The Clausius- Clapeyron equation is :

$\ln (\frac{P_2}{P_1})=\frac{\Delta H_{vap}}{R}\times (\frac{1}{T_1}-\frac{1}{T_2})$

where,

$P_1$ = vapor pressure of liquid at 373 K = 681 torr

$P_2$ = vapor pressure of liquid at normal boiling point = 760 torr

$T_1$ = temperature of liquid = ?

$T_2$ = normal boiling point of liquid = 373 K

$\Delta H_{vap}$ = heat of vaporization = 40.7 kJ/mole = 40700 J/mole

R = universal constant = 8.314 J/K.mole

Now put all the given values in the above formula, we get:

$\ln (\frac{760torr}{681torr})=\frac{40700J/mole}{8.314J/K.mole}\times (\frac{1}{T_1}-\frac{1}{373K})$

$T_1=369.907K\approx 369.9K$

Hence, the temperature of liquid is, 369.9 K

6 0

2 years ago

Read 2 more answers

What ion the element P forms? Explain.

emmasim [6.3K]

Phosphorus is in group 15 meaning it have 5 valence electrons. This means that it needs 3 more electrons to create a full outer shell. As these three electrons are negatively charged it means that P is a 3- ion (it’s an anion [negatively charged ion])

5 0

2 years ago

A 25.0 ml sample of 0.150 m benzoic acid is titrated with a 0.150 m naoh solution. what is the ph at the equivalence point? the

Ad libitum [116K]

Solution:

At the equivalence point, moles NaOH = moles benzoic acid

HA + NaOH ==> NaA + H2O where HA is benzoic acid

At the equivalence point, all the benzoic acid ==> sodium benzoate

A^- + H2O ==> HA + OH- (again, A^- is the benzoate anion and HA is the weak acid benzoic acid)

Kb for benzoate = 1x10^-14/4.5x10^-4 = 2.22x10^-11

Kb = 2.22x10^-11 = [HA][OH-][A^-] = (x)(x)/0.150

x^2 = 3.33x10^-12

x = 1.8x10^-6 = [OH-]

pOH = -log [OH-] = 5.74

pH = 14 - pOH = 8.26

5 0

2 years ago

Read 2 more answers

Please help me out i'm new here but i really need help for science (if you need help with any hw like ela i can help!) (50 point

andrezito [222]

Q6. 3
Q7. 3
Q8. pH
Q18. 3
Q19. 3
Q20. 4
Hope this helped？？

6 0

2 years ago