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pav-90 [236]
2 years ago
15

An actual measurement of a sample is 3.5 m. The measured

Chemistry
2 answers:
zhannawk [14.2K]2 years ago
6 0

Answer:

B. 29 percent

Explanation:

hope this helps

strojnjashka [21]2 years ago
5 0

Answer: b 29 percent

Explanation:

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What quantity of heat is required to raise the temperature of 460g of aluminum from 15C to 85C?
Hoochie [10]

Answer:

Q = 28.9 kJ

Explanation:

Given that,

Mass of Aluminium, m = 460 g

Initial temperature, T_i=15^{\circ} C

Final temperature, T_f=85^{\circ}

We know that the specific heat of Aluminium is 0.9 J/g°C. The heat required to raise the temperature is given by :

Q=mc\Delta T\\\\Q=mc(T_f-T_i)\\\\Q=460\ g\times 0.9\ J/g^{\circ} C\times (85-15)^{\circ} C\\\\Q=28980\ J\\\\\text{or}\\\\Q=28.9\ kJ

So, 28.9 kJ of heat is required to raise the temperature.

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