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2 years ago

How much thermal energy does a cup of coffee have

2 answers:

8 0

Temperature is related to the average kinetic energy of jostling molecules. It is measured using a thermometer in degrees Celsius, Fahrenheit, or Kelvin. Thermal energy refers to the total energy of all the jostling molecules in the coffee. Your friends' smaller cups of coffee will have less thermal energy than the larger pot of coffee because these smaller cups contain a fewer number of moving molecules. How much heat is transferred from coffee to your mouth depends on difference in temperature between the coffee and your mouth. Your coffee will seem hotter if your mouth is colder from drinking ice water.

Fantom [35]2 years ago

6 0

Answer:

a lot that's why it's really hot

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Tcs food that stay in the tempature danger zone for 4 hours or longer

Fittoniya [83]

What are you trying to ask??????

3 0

3 years ago

1 pts

bonufazy [111]

Answer:

secound one is the answer: Distillation

this may help you

5 0

2 years ago

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A chemist wants to develop a fuel by converting water back to elemental hydrogen and oxygen using coupled ATP hydrolysis to driv

Doss [256]

Answer:

Firstly, we need know that:

Energy of a opposite reaction will equal to = (-) energy of forward reaction.

Therefore,

H2(g) +1/2 O2(g) -------------> H2O (g) ΔfG = -237.13 kJ/mol -----------(1)

ATP + H2O (l) ................. ...........> ADP + Pi ΔG = -31 kJ/mol -----------(2)

The first equation can be written as:

H2O -------------------------> H2 +1/2 O2 ΔG = 237.13 kJ/mol -------------(3)

Equation (3) showed the formation of one mole of H2 gas required energy = 237.13 kJ/mol

Equation (2) showed that one mole of ATP on hydrolysis produces energy = 31.0 kJ/mol

Therefore, to get one mole of H2 gas means:

no of moles of ATP required = energy required for H2 production/energy produced by ATP

= 237.13/31.00

= 7.65 moles

Therefore, to produce one mole H2 gas = 7.65 moles of ATP is required

So in order to produce 3 moles of H2

= x ATP required for one mole

= 3 x 7.649

= 22.947 moles

Therefore, to produce three mole of H2 = 22.9 moles of ATP.

3 0

3 years ago

Read 2 more answers

Which statement accurately describes what happens when water turns to stream in terms of energy?

-Dominant- [34]

When water turns to steam,

D) the water absorbs energy which causes the water molecules to have more kinetic and potential energy changing their configuration from a liquid to a gas.

Hope this helps! :)

3 0

3 years ago

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Las capas del lecho marino del Mar Mediterráneo cuentan la historia de los cambios ambientales en el hoy desértico norte de Afri

slamgirl [31]

Answer:

160.000 años corresponde a 16.000 décadas.

Explanation:

Para resolver correctamente el ejercicio debemos plantear la regla de tres simple de la siguiente manera:

1 década equivale a 10 años; A cuantas decadas equivalen 160.000 años?

1 década→10 años

x ←160.000 años

Debemos multiplicar 160.000 por 1 y luego dividir entre 10 ;

x=( $\frac{160.000x1}{10}$ )=16.000 décadas; en notación científica sería 16x10^3.

Respuesta: 160.000 años corresponde a 16.000 décadas.

5 0

3 years ago