160k views
5 votes
How much energy is required to heat 14 grams of water from 18 degrees Celsius to 47 degrees Celsius

User Matt Toigo
by
3.2k points

1 Answer

9 votes

Answer:


Q=1,698.7J

Step-by-step explanation:

Hello!

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


Q=mC(T_f-T_i)

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:


Q=14g*4.184(J)/(g\°C)(47°C-18°C)\\\\Q=1,698.7J

Best regards!

User Omar Jandali
by
3.8k points