348 g of water starting at 4.0°Celsius is heated until his temperature is 37°Celsius. Calculate the amount of heat energy needed

Question

Galina-37 [17]

2 years ago

14

348 g of water starting at 4.0°Celsius is heated until his temperature is 37°Celsius. Calculate the amount of heat energy needed

to cause this rise in temperature
STEP BY STEP EXPLANATION!!

Chemistry

1 answer:

attashe74 [19] · Answer 1 · 2022-07-02T07:02:54+03:00

Answer:

48.049 kJ or 48049 J

Explanation:

Hello again.

So we know the formula $q = mc\Delta t$ . c is the heat capacity but this time, it is not given. However, water has a very well known heat capacity which is 4.184 J/(g°C). This is in fact the number we refer to a calorie which is the amount of energy you burn that can raise the temperature of 1g of water by 1°C. So, plugging in values, you get the above. But double check if I am wrong.