Two hundred grams of a substance requires 9.76 kj of heat to raise its temperature from 25degrees C to 45 degrees C

Question

Lillie Santos

Chemistry

9 July, 22:39

Two hundred grams of a substance requires 9.76 kj of heat to raise its temperature from 25degrees C to 45 degrees C

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Answers (1)

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Yusuf Rollins · Answer 1

Given:

9.76 kj of heat

from 25degrees C to 45 degrees C

200 grams of substance

Required:

Cp in kJ/kg-K

Solution:

H = mCpT

(9.76 kJ) = (200g) (1kg/1000g) Cp (45 - 25) K

Cp = 2.44 kJ/kg-K