amayaroberson473 amayaroberson473
  • 21-05-2021
  • Physics
contestada

The specific heat of water is 4.18 J/(g·°C). How much energy is necessary to raise 15 g of water by 20 °C? (Use the equation Q = mcpΔT )

Respuesta :

asuwafohjames
asuwafohjames asuwafohjames
  • 23-05-2021

Answer:

1254 J

Explanation:

Applying,

Q = mcpΔT................... Equation 1

Where Q = heat, m = mass of water, cp = specific heat capacity of water, ΔT = Change in temperature.

From the question,

Given: m = 15 g, cp = 4.18 J/(g.°C), ΔT = 20°C

Substitute these values into equation 1

Q = 15×4.18×20

Q = 1254 J

Hence the amount of energy required is 1254 J

Answer Link

Otras preguntas

Please show work. Thank you so much if you answer
Which of the following accurately describes fermentation? A. Fermentation generates more ATP than cellular respiration. B. Fermentation always produces
10 liters equals how many gallons
Who is ‘Lucy’? a. The archaeologist who discovered the earliest known primate b. The earliest known human ancestor c. The tallest known human ancestor d. The f
What does this equation equal to | -9 + 4 | =
What is the largest city in the US?
what development occurred in Germany as a result of the terms of the treaty of Versailles
which sentence is opinion rather than fact? 1. Humans will never travel to planets around even the nearest stars. 2. When you see the Sun, you aren't seeing it
there is a sentence in my study guide that says " many of us unconsciously fall back on a whole list of words that say precious little." this doesn't make sense
what is 12765x6748+6789