For which reaction is Δ H equal to Δ U? | StemPy Lab

Help Contact For teachers and institutes

Mock Tests Classes

StemPy Lab

Learn. Solve. Code the solutions. Test yourself.

Live examsFree mock exams, timed and rankedEveryone starts together, and your score and rank come the moment it ends.See the exams →

Learn

Physics
Chemistry
Mathematics
Biology
Python Programming
Statistics & Data Science
Classes
Groups

Practice

Problems
Quizzes
Mock Tests
Prepare for an Exam
Question Sets
Exams
Certificates
Python Labs
AI Practice Generator
Student-Created Tests

Community

Discussions
Resources
Notes
Blog

Account

Dashboard
My Content
Profile
Log in

© 2026 senLearn. All rights reserved.Help About Contact Privacy Policy Terms of Use Refund Policy

For which reaction is Δ H equal to Δ U? | StemPy Lab

Quizzes
For which reaction is Δ H equal to Δ U?

ChemistryEasyHigh School (11–12)Chemical Thermodynamics › Enthalpy and Hess's Law Chemical Thermodynamics › Systems, Work, Heat and the First Law A-Level AP IB

Created by StemPy Lab

For which reaction is $\Delta H$ equal to $\Delta U$ ?

← All Quizzes

← Using the bond enthalpies N≡N = 946, H-H = 436 and N-H = 389, all in kJ/mol, estimate Δr H for N₂(g) + 3H₂(g) → 2NH₃(g).Propane burns as C₃H₈(g) + 5O₂(g) → 3CO₂(g) + 4H₂O(l) at 340 K. Taking R = 8.3 J K⁻¹mol⁻¹, what is Δ H - Δ U? →

More onChemical Thermodynamics › Enthalpy and Hess's Law Chemical Thermodynamics › Systems, Work, Heat and the First Law

Discussion (0)

Log in to join the discussion.

Loading…

More questions on this topic

For N₂(g) + 3 H₂(g) → 2 NH₃(g) at 298 K, Δr H° = -92.4 kJ mol⁻¹. The bond enthalpies are N≡N 946…Advanced
The standard enthalpy of formation of methane, CH₄(g), is -74.8 kJ mol⁻¹. The enthalpy of…Hard
The standard enthalpies of combustion are: ethyne, C₂H₂(g), -1300 kJ mol⁻¹; graphite, -393.5 kJ…Medium
A student pours 60.0 mL of 1.50 M nitric acid into 140.0 mL of 0.500 M potassium hydroxide…Medium
The standard enthalpies of formation are C₂H₄(g) +52.3 kJ mol⁻¹, CO₂(g) -393.5 kJ mol⁻¹ and H₂O(l)…Medium

All questions on this topic →

Problems on this topic

Benzene is more stable than a ring of three single and three double bonds (one Kekule structure)…Advanced
A bomb calorimeter (a sealed steel vessel of fixed volume in a water bath) is first calibrated…Hard
Breaking one mole of CH₄(g) into atoms takes 1665 kJ…Hard
Estimate Δr H for C₂H₄(g) + H₂(g) → C₂H₆(g) from the mean bond enthalpies: C=C 611, H-H 435, C-C…Medium

All problems on this topic →