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Science Clinic => Chemistry => Topic started by: segrsyd on Mar 21, 2021

Title: CH4(g) + 4Cl2(g) CCl4(g) + 4HCl(g), H = 434 kJBased on the above reaction, what energy change ...
Post by: segrsyd on Mar 21, 2021

Question 1

Calculate the work for the expansion of CO₂ from 1.0 to 5.2 liters against a pressure of 1.0 atm at constant temperature.

◦ 4.2 L·atm
◦ 5.2 L·atm
◦ 0 L·atm
◦ –4.2 L·atm
◦ –5.2 L·atm

Question 2

CH₄(g) + 4Cl₂(g) → CCl₄(g) + 4HCl(g), ΔH = –434 kJ
Based on the above reaction, what energy change occurs when 1.2 moles of methane (CH₄) reacts?

◦ 5.2 × 10⁵ J are released.
◦ 5.2 × 10⁵ J are absorbed.
◦ 3.6 × 10⁵ J are released.
◦ 3.6 × 10⁵ J are absorbed.
◦ 4.4 × 10⁵ J are released.

Title: CH4(g) + 4Cl2(g) CCl4(g) + 4HCl(g), H = 434 kJBased on the above reaction, what energy change ...
Post by: Natalie4ever on Mar 21, 2021

Answer 1

–4.2 L·atm

Answer 2

5.2 × 10⁵ J are released.

Title: Re: CH4(g) + 4Cl2(g) CCl4(g) + 4HCl(g), H = 434 kJBased on the above reaction, what energy change .
Post by: jjjjjj on Dec 13, 2021

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