Spontaneous Reaction Video Lessons

Video Thumbnail

Concept

Problem: Sodium carbonate can be made by heating sodium bicarbonate:2 NaHCO3 (s) → Na2CO3(s) + CO2(g) + H2O(g)Given that standard enthalpy of reaction is 128.9 kJ and the standard Gibbs energy of reaction is 33.1 kJ at 25oC, above what temperature is the reaction become spontaneous? Assume that the enthalpy and entropy of reaction do not depend on temperature.a) 0.4 Kb) 3.9 Kc) 321 Kd) 401 Ke) 525 K

FREE Expert Solution
96% (377 ratings)
Problem Details

Sodium carbonate can be made by heating sodium bicarbonate:

2 NaHCO3 (s) → Na2CO3(s) + CO2(g) + H2O(g)

Given that standard enthalpy of reaction is 128.9 kJ and the standard Gibbs energy of reaction is 33.1 kJ at 25oC, above what temperature is the reaction become spontaneous? Assume that the enthalpy and entropy of reaction do not depend on temperature.

a) 0.4 K

b) 3.9 K

c) 321 K

d) 401 K

e) 525 K

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 Spontaneous Reaction concept. You can view video lessons to learn Spontaneous Reaction. Or if you need more Spontaneous Reaction practice, you can also practice Spontaneous Reaction practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofSodium carbonate can be made by heating sodium bicarbonate:2...as high difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Dasha took 7 minutes and 50 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 Hoff's class at UM.