Question

Calculate the total heat generated by a body of mass if

mass (m) of body=100grams
Specific heat (S)=0.10
Initial temperature=30°C
Final temperature=100 C
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Answer 1

Answer:

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Answer 2

Answer:

Units are in SI system.

Steps:

1) Given,

Mass of Caloriemeter, m = 100g = 0.1kg

Specific Heat of Caloriemeter, S (C) = 0.1 units

Mass of liquid, m. = 0.25 kg

Specific Heat of Liquid, s(L) = 0.4 units

Mass of Ice, = 0.01kg

Latent heat of fusion of Ice, L(f) = 80 units

Specific heat of water, S(w) = 1 units.

2) Heat due to fusion = m L

Heat due to change in T = ms* del(T)

Let the final Equilibrium Temperature be T. Celsius.

Q(net ) = Q(1) + Q(2) + Q(3) + Q(4)

0 = 0.1 * 0.1 (T-30) + 0.25 *0.4 (T-30) + 0.01 * 80

+ 1* 0.01 (T-0)

Multiply by 100 on both sides,

=>0 = T-30 + 10(T-30) + 80 + T

=> 12 T = 250

=> T = 20.83 °C

Therefore, Final Temperature of mixture = 20.83°C

Explanation: