# Problem: A chemist measures the energy change ΔH during the following reaction: CH4 (g)+2O2 (g) → CO2 (g) + 2H2O (l)     ΔH = -882. kJUse the information to answer the following questions. The reaction is:                   (i) endothermic.                    (ii) exothermic. Suppose 84.2 g of CH4 react. Will any heat be released or absorbed?                   (i) Yes, absorbed.                    (ii) Yes, released.                    (iii) No. If you said heat will be released or absorbed in the second part of this question, calculate how much heat in kJ will be released or absorbed. Round your answer to 3 significant digits.

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A chemist measures the energy change ΔH during the following reaction:

CH4 (g)+2O2 (g) → CO2 (g) + 2H2O (l)     ΔH = -882. kJ

Use the information to answer the following questions.

The reaction is:

(i) endothermic.

(ii) exothermic.

Suppose 84.2 g of CH4 react. Will any heat be released or absorbed?

(i) Yes, absorbed.

(ii) Yes, released.

(iii) No.

If you said heat will be released or absorbed in the second part of this question, calculate how much heat in kJ will be released or absorbed. Round your answer to 3 significant digits.

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Thermochemical Equation concept. You can view video lessons to learn Thermochemical Equation. Or if you need more Thermochemical Equation practice, you can also practice Thermochemical Equation practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofA chemist measures the energy change ΔH during the following...as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Dasha took 4 minutes and 43 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Ely's class at WVU.