All Courses
Get the App Signup / Login
Sign in Open App
Year 3 Exam  >  Year 3 Tests  >  Test: Chemical Energetics - Year 3 MCQ

Test: Chemical Energetics - Year 3 MCQ


Test Description

10 Questions MCQ Test - Test: Chemical Energetics

Test: Chemical Energetics for Year 3 2024 is part of Year 3 preparation. The Test: Chemical Energetics questions and answers have been prepared according to the Year 3 exam syllabus.The Test: Chemical Energetics MCQs are made for Year 3 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Chemical Energetics below.
Solutions of Test: Chemical Energetics questions in English are available as part of our course for Year 3 & Test: Chemical Energetics solutions in Hindi for Year 3 course. Download more important topics, notes, lectures and mock test series for Year 3 Exam by signing up for free. Attempt Test: Chemical Energetics | 10 questions in 20 minutes | Mock test for Year 3 preparation | Free important questions MCQ to study for Year 3 Exam | Download free PDF with solutions
Test: Chemical Energetics - Question 1
Save

Pick the correct combination for the correct information regarding bond energies.

Detailed Solution for Test: Chemical Energetics - Question 1

Remember Exothermic Exit and Endothermic Enter

Test: Chemical Energetics - Question 2
Save

The overall energy change in a chemcial reaction is -24kJ/mol. What does this tell us about the reaction?

Detailed Solution for Test: Chemical Energetics - Question 2
A negative energy change shows the reaction is exothermic and so heat and/or other energy has been transferred into the surroundings, often increasing the temperature
1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Chemical Energetics - Question 3
Save

Using the bond energies provided, calculate the energy change for this reaction.
2CH4 + O2 → 2CH3OH

Detailed Solution for Test: Chemical Energetics - Question 3

When carrying out these calculations, always subtract the reactants energy from the products

Test: Chemical Energetics - Question 4
Save

In the Haber process, nitrogen and hydrogen are reacted together to produce ammonia. Use the bond energies provided to calculate the overall energy change in the reaction.
N2 + 3H2 ⇌ 2NH3
Detailed Solution for Test: Chemical Energetics - Question 4

945 + (3x436) - (6x-391) = -93kJ

Test: Chemical Energetics - Question 5
Save

Use the bond energies provided to calculate the energy change in the following reaction.
H2 + Cl2 → 2HCl
Detailed Solution for Test: Chemical Energetics - Question 5

Bond breaking = 436+243kJ/mol; bond making 2x432kJ/mol

Test: Chemical Energetics - Question 6
Save

Use the bond energies provided to calculate the energy change in the following reaction.
oxygen + hydrogen → water
Detailed Solution for Test: Chemical Energetics - Question 6

Add together the energy of each bond of the reactants, do the same for the bonds in the products. Then subtract the total bond energy of the reactants from that of the products to get the answer

Test: Chemical Energetics - Question 7
Save

Use the bond energies provided to calculate the amount of energy given out when propane is burnt.
C3H8 + 5O2 → 3CO2 + 4H2O
Detailed Solution for Test: Chemical Energetics - Question 7

Remember that CO2 has 2 C=O double bonds not single bonds

Test: Chemical Energetics - Question 8
Save

Which of the following statements describes an exothermic reaction?
Detailed Solution for Test: Chemical Energetics - Question 8

An exothermic reaction releases heat to the surroundings, making it feel warm.

Test: Chemical Energetics - Question 9
Save

What is the role of enzymes in biological reactions?
Detailed Solution for Test: Chemical Energetics - Question 9

Enzymes are biological catalysts that accelerate chemical reactions in living organisms without being consumed in the process.

Test: Chemical Energetics - Question 10
Save

What does the term 'enthalpy' represent in a chemical reaction?
Detailed Solution for Test: Chemical Energetics - Question 10

Enthalpy is the total heat content of a system at constant pressure, including both the internal energy and the product of pressure and volume.

Information about Test: Chemical Energetics Page
In this test you can find the Exam questions for Test: Chemical Energetics solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Chemical Energetics, EduRev gives you an ample number of Online tests for practice

Top Courses for Year 3

Download as PDF

Top Courses for Year 3

Important Questions for Chemical Energetics

Find all the important questions for Chemical Energetics at EduRev.Get fully prepared for Chemical Energetics with EduRev's comprehensive question bank and test resources. Our platform offers a diverse range of question papers covering various topics within the Chemical Energetics syllabus. Whether you need to review specific subjects or assess your overall readiness, EduRev has you covered. The questions are designed to challenge you and help you gain confidence in tackling the actual exam. Maximize your chances of success by utilizing EduRev's extensive collection of Chemical Energetics resources.

Chemical Energetics MCQs with Answers

Prepare for the Chemical Energetics within the Year 3 exam with comprehensive MCQs and answers at EduRev. Our platform offers a wide range of practice papers, question papers, and mock tests to familiarize you with the exam pattern and syllabus. Access the best books, study materials, and notes curated by toppers to enhance your preparation. Stay updated with the exam date and receive expert preparation tips and paper analysis. Visit EduRev's official website today and access a wealth of videos and coaching resources to excel in your exam.

Online Tests for Chemical Energetics

Practice with a wide array of question papers that follow the exam pattern and syllabus. Our platform offers a user-friendly interface, allowing you to track your progress and identify areas for improvement. Access detailed solutions and explanations for each test to enhance your understanding of concepts. With EduRev's Online Tests, you can build confidence, boost your performance, and ace Chemical Energetics with ease. Join thousands of successful students who have benefited from our trusted online resources.
© EduRev
Education Revolution
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup