Question

12000 calorie of heat is supplied to 2 kg of mass of iron at a temperature 20 degrees the specific heat of iron is 0.1 calorie per gram what is the final temperature of iron​

Answer 1

Answer:

• The Final Temperature (T₂) of the body 80°C

Given:

1. Heat supplied (Q) = 12000 Calorie.
2. Mass (M) = 2 Kg = 2000 grams
3. Initial temperature (T₁) = 20°C
4. Specific Heat (C) = 0.1 cal/g

Explanation:

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From the relation we know,

⇒ Q = M C Δ T

Substituting the values,

⇒ 12000 = 2000 × 0.1 × Δ T

⇒ 12000 = 200 × Δ T

⇒ Δ T = 12000 / 200

⇒ Δ T = 60

⇒ T₂ - T₁ = 60

Since, Δ T = Final Temp. - Lower Temp.

⇒ T₂ - 20 = 60

⇒ T₂ = 60 + 20

⇒ T₂ = 80

⇒ T₂ = 80°C

∴ The Final Temperature (T₂) of the body 80°C.

Note:

• The Symbols have their usual meaning.

• The mass is converted into grams to simplify the problem in easy way as Specific heat is given in cal/g, So both will cancel each other.

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Answer 2

Answer:

final temperature is 80 degree Celsius

Explanation:

by substituting we get 80degree Celsius as final tempereature..