A scientist wanted to calculate the specific heat capacity o - GED Practice Questions
Question
A scientist wanted to calculate the specific heat capacity of a substance in the laboratory. He added 90 joules of heat into 20 g of paraffin and the temperature of the solution rose by 5K. What is the specific heat of the substance?
Answers
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Explanation
Specific heat capacity is the amount of heat required to raise the temperature of a unit mass of a substance by 1K.
It is calculated as follows;
Q = Mass x specific heat capacity x temperature change
From the question;
Q= 90J, M= 10g, and T=5K,
Therefore,
90 = 10 x C x 5
c= 1.8 J/g.K
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