Name 4 COARSE grained rocks
2 answers:
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Answer:
Explanation:
First of all, I used the specific heat of water as 4182 J/(kgC) and the specific heat of ethyl alcohol (EtOH) as 2440 J/(kgC); that means that we need the masses in kg, not g.
120.g = .1200 kg of ethyl alcohol. Now for the formula:
where spheat is specific heat.
Filling that horrifying-looking formula in with some values:
and
and
16(4182x + 292.8) = 83640x + 2928 and
66912x + 4684.8 = 83640x + 2928 and
1756.8 = 16728x so
x = .105 kg and the amount of water added is 105 g
Answer:
If you have 8 Joules of energy that means you have 1.912 calories.
Explanation:
As we know that one calorie is equal to 4.184 J. We need to calculate in 8 Joules of energy how many calories are present.
We know that,
For 1 calorie = 4.184 J
For ? = 8 Joules
To obtain calories in 8 Joules. Divide 8 by 4.184.
calorie=1.912
Therefore, 8 J = 1.912 calorie.