# Calculate the energy required to heat 406.0mg of cyclohexane from 33.5°C to 38.9°C . Assume the specific heat capacity of cyclohexane under these conditions is 1.85·J·g−1K−1 . x Be sure your answer has the correct number of significant digits.

1 answer

###### Question:

Calculate the energy required to heat 406.0mg of cyclohexane from 33.5°C to 38.9°C .

Assume the specific heat capacity of cyclohexane under these conditions is 1.85·J·g−1K−1 . x

Be sure your answer has the correct number of significant digits.

Assume the specific heat capacity of cyclohexane under these conditions is 1.85·J·g−1K−1 . x

Be sure your answer has the correct number of significant digits.

## Answers

Answer:We need 4.06 J to heat of 406.0 mg of cyclohexaneExplanation:Step 1: Data givenMass of cyclohexane = 406.0 mg = 0.406 gramsThe initial temperature = 33.5 °CThe final temperature = 38.9 °CThe specific heat of cyclohexane = 1.85 J/g*KStep 2: Calculate the energy required to heatQ = m*c*ΔT⇒ with m = the mass of cyclohexane = 0.406 grams⇒ with c = the specific heat of cyclohexane = 1.85J/g*K⇒ with ΔT = The change of temperature = T2 - T1 = 38.9 - 33.5 = 5.4 Q = 0.406 g * 1.85J/g*K * 5.40 Q = 4.06 JWe need 4.06 J to heat of 406.0 mg of cyclohexane

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