cristiann2004 cristiann2004
  • 26-02-2021
  • Chemistry
contestada

how much energy is required to heat 14 grams of water from 18 degrees Celsius to 47 degrees Celsius

Respuesta :

sebassandin
sebassandin sebassandin
  • 03-03-2021

Answer:

[tex]Q=1,698.7J[/tex]

Explanation:

Hello!

In this case, since the calculation of the required energy is performed via the following equation:

[tex]Q=mC(T_f-T_i)[/tex]

Thus, since the mass is 14 g, specific heat is 4.184 J(g*°C) and the temperatures are 47 °C and 18 °C respectively, the resulting energy is:

[tex]Q=14g*4.184\frac{J}{g\°C}(47°C-18°C)\\\\Q=1,698.7J[/tex]

Best regards!

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