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Nookie1986 [14]
2 years ago
7

If the specific heat capacity of copper is 387 J/kg/°C, then how much energy is needed to raise the temperature of 400 g of copp

er from 30°C to 55°C?
Chemistry
1 answer:
eduard2 years ago
5 0

Answer:

Explanation:

mass = 400 grams * [1 kg/1000 grams] = 0.400 kg

c = 387 Joules / (oC * kg)

Δt = 55 - 30 = 25 oC

E = m*c * Δt

E = 0.4 * 387 * 25

E = 3870 Joules

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2 years ago
20 ML of a gas at 200 K is heated until the new volume is 55ML what is the final temperature of the gas
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Answer:

T2 = 550K

Explanation:

From Charles law;

V1/T1 = V2/T2

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We are given;

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