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Question 1 • Quiz

The specific heat of water is 4 point 1 8 the fraction with numerator cap j and denominator open paren g times degree cap c close paren and that of wood is 1 point 9 7 the fraction with numerator cap j and denominator open paren g times degree cap c close paren Which statement is correct?

Answer
A
Given equal masses, water will heat up less than wood if the same heat is added.
B
Given equal masses, wood will heat up less than water if the same heat is added.
C
Regardless of mass, water will heat up less than wood if the same heat is added.
D
Regardless of mass, wood will heat up less than water if the same heat is added.

Explanation

Use the relationship Q = mcΔT, so for the same heat added, the temperature change is ΔT = Q/(mc). Water’s specific heat, 4.18 J/(g·°C), is greater than wood’s, 1.97 J/(g·°C), so equal masses of water and wood will have water’s temperature rise less. The statement applies to equal masses; different masses could change the comparison.

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