The standard enthalpy change for the following reaction is -170 kJ at 298 K. 2 Cu(s)...

80.2K

Verified Solution

Question

Chemistry

The standard enthalpy change for the following reaction is -170kJ at 298 K. 2 Cu(s) + 1/2 O2(g) Cu2O(s) Î”HÂ° = -170 kJ What is thestandard enthalpy change for the reaction at 298 K? 4 Cu(s) + O2(g)2 Cu2O(s)
A student determines the heat of dissolution of solid cobalt(II)chloride using a coffee-cup calorimeter of negligible heatcapacity. When 1.33 g of CoCl2(s) is dissolved in 111.00 g ofwater, the temperature of the solution increases from 25.00 to26.84 Â°C. Based on the student's observation, calculate theenthalpy of dissolution of CoCl2(s) in kJ/mol. Assume the specificheat of the solution is 4.184 J/gÂ°C.

Answer & Explanation Solved by verified expert

4.4 Ratings (745 Votes)

1 The standard enthalpy change Ho of a reaction is the net heat absorbed or released in a reaction Now for the given reaction 2 Cus 12 O2g Cu2Os H 170 kJ Now if we double the moles of the gases involved then the heat change will also doubled ie 2 See Answer

Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:

Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!

Become a Member