Answer:
The sign is negative (-)
Explanation:
it shows that heat was give off to the surrounding
The mass of barium occupying 50 cubic centimeters of volume is 181 grams.
Explanation:
Given :
The denisty of barium is
To find;
The mass of a sample of barium that occupies a space of
Solution:
- The mass of barium = M
- The volume of barium = V =
- The density of the barium = D =
The density of the substance is given as:
181 grams is the mass of barium occupying 50 cubic centimeters of volume.
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Answer:
Chemical energy is chemical substance that goes through a chemical reaction to transform into other substances.
Explanation:
biomass, batteries
Answer:
The amount of energy transferred to the diamond while being cut is thus Q = 852000 J
Explanation:
Since quantity of heat transferred Q = mcΔθ where m = mass of substance , c = specific heat capacity of substance and Δθ = temperature change.
Now, given that for diamond, m = mass of diamond = 600 g, c = specific heat capacity of diamond = 710 J/g°C and Δθ = temperature change = 2 °C.
So, the amount of energy transferred to the diamond while being cut is thus
Q = mcΔθ
Q = 600 g × 710 J/g°C × 2 °C
Q = 852000 J
So, the amount of energy transferred to the diamond while being cut is thus Q = 852000 J