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Every substance has a specific value of heat required in order to change the temperature of 1 gram of the substance by 1 degree Celsius. Specific heat is calculated by using the equation Q=mcΔt, where Q represents heat in joules, m represents mass in grams, Δt is the change in temperature in Celsius, and c is the coefficient constant for a substance. What are the units for thecoefficient c.

A. c=J·g·°C
B. c=J·g/°C.
C. c=J/g·°C
D. c=g·°C/J

User Majkeee
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2 Answers

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Answer: C. c=J/g·°C

Explanation: Q=mcΔt → c=Q/mΔt → c=J/g·°C

User Yasin Mushtaq
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We know that Q is in joules, m is in grams, and Δt is in °C . Thus:
J = g * °C * c
c = J/(g * °C )
The answer is C
User Tono Nam
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