We’re being asked to determine the signs of ΔH and ΔE given w = 0 and that the reaction is endothermic.
Work is given by the equation:
When work is equal to 0, there’s no change in volume or the volume is constant.
For ΔH, recall endothermic and exothermic reactions:
• Exothermic reactions
▪ lose energy, releases heat, the temperature of the surroundings increases
▪ involves bond formation (for phase change: gas → liquid → solid)
▪ ΔH is negative
• Endothermic reactions
Given w = 0, an endothermic reaction has which of the following:
a. +ΔH and +ΔE
b. -ΔH and -ΔE
c. +ΔH and -ΔE
d. -ΔH and +ΔE
Frequently Asked Questions
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 Endothermic & Exothermic Reactions concept. You can view video lessons to learn Endothermic & Exothermic Reactions. Or if you need more Endothermic & Exothermic Reactions practice, you can also practice Endothermic & Exothermic Reactions practice problems.
What is the difficulty of this problem?
Our tutors rated the difficulty ofGiven w = 0, an endothermic reaction has which of the follow...as low difficulty.
How long does this problem take to solve?
Our expert Chemistry tutor, Dasha took 1 minute and 33 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 Barrow's class at GSU.