Question

when a substance having mass 3 kg receives 600 cal of heat, its temperature increases by 10 degrees Celsius. what is the specific heat of the substance?

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.plz answer correct one
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Answer 1

Answer:

Q denotes heat energy, m denotes mass of the substance, c denotes specific heat capacity and t represents change in temperature. C = 20 cal/ kg °C. Thus, specific heat capacity of substance is 20 cal/ kg °C.

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Answer 2

Soln:-

Let the specific heat capacity of the substance be c.

Given:

Mass of the substance, m = 3 kg = 3000g

Heat given to the substance, Q = 600 cal

Increase in temperature of the substance = 10∘C

Now, the amount of heat in a body is given as

Q = m × c × △T

=> c = Q

m ×△T

= 6000

3000 × 10

= 0.012 cal g-¹° C-¹

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