dxris5612 dxris5612
  • 24-02-2021
  • Chemistry
contestada

A 44g sample of liquid water at 18C ends up as ice -14C. How much energy is involved in this change?

Respuesta :

Muscardinus Muscardinus
  • 25-02-2021

Answer:

Q = -5913.6 J

Explanation:

Given that,

Mass of the sample, m = 44 g = 0.044 kg

Initial temperature = 18°C

Final temperature = -14°C

We need to find the energy involved in this change. The energy involved in this process is given by :

[tex]Q=mc\Delta T[/tex]

c is specific heat of water

[tex]Q=0.044\times 4200\times (-14-18)\\\\Q=-5913.6\ J[/tex]

So, 5913.6 J of energy is involved in this change.

Answer Link

Otras preguntas

What is a lower quartile
Construction permits, traffic fines, and water fees are all examples of ________________. a. county-issued bonds b. federal government fees c. local government
Jeanne does not like dirt or germs. in fact, she dislikes them so much that hs ewashes her hands 200 to 300 times a day to make sure she does not get infected.
Ben can buy a package of 5 tshirts for 26.25 or a package of 3 tshirts for 14.25. what is the unit price per t-shirt in each package ?
A client who is diagnosed with premenstrual syndrome is ordered a gonadotropin-releasing hormone (gnrh). which is a priority teaching item in the use of this dr
In 1811 avogadro wrote a paper that clearly distinguished what
What is the multiplicative rate of change for the exponential function f(x)=2 (5/2)-x
simplify -5 / x - 3 - -4 / x + 2 any help to simplify
what is ohms law solved for current
Numeric data is stored in what for direct processing