2 years ago

Pls hlp me with these questions: brainliest, ratting, thx, etc.

Chemistry

1 answer:

daser333 [38]2 years ago

4 0

1 elements
2 they have same number of valence electrons
3 period

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To calculate the final temperature, we use the equation:

$q=mC(T_2-T_1)$

where,

q = heat released = $1.0\times 10^3J=1000J$

m = mass of water = 10.0 grams

C = specific heat capacity of water = 4.184 J/g°C

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$T_1$ = initial temperature = 20°C

Putting values in above equation, we get:

$1000J=10.0g\times 4.184J/g^oC\times (T_2-20)\\\\T_2=43.9^oC$

Hence, the final temperature of the coffee is 43.9°C

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