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Bond [772]
3 years ago
11

Calculate the specific heat capacity of a piece of ice if 1.30 kg of the wood absorbs 6.75×104 joules of heat, and its temperatu

re changes from 32 ºC to 57 ºC.
Chemistry
2 answers:
spayn [35]3 years ago
8 0

Answer:

1.8  J/ g ∘ C

Explanation:

A substance's specific heat tells you how much heat much either be added or removed from  1 g  of that substance in order to cause a  1 ∘ C  change in temperature.

The equation that establishes a relationship between specific heat, heat added or removed.

Lunna [17]3 years ago
5 0

Answer:

2076.9 J/kg°C

Explanation:

The equation needed here is:

q=mC(T_f-T_i) , where q is the energy in Joules, m is the mass in kg, C is the heat capacity, T_f is the final temperature, and T_i is the initial temperature.

Here, we have q = 6.75*10^4 J, m = 1.30kg, T_f = 57, and T_i = 32. So:

6.75*10^4=1.30*C*(57-32)

Solving for C, we get:

C = 2076.9 J/kg°C

Hope this helps!

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Answer: The correct answer is option(A).

Explanation:

Total forces exerting on the car = F

F_r=50 N= Force on car exerting in right direction

F_l=20 N= Force on car exerting in left direction

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