11.More Nrg _ Rates Questions (ANSWERS).pdf - SCH4U ENERGY CHANGES RATES OF REACTION 1 If EP decreases over time as the reaction proceeds then A EK

11.More Nrg _ Rates Questions (ANSWERS).pdf - SCH4U ENERGY...

This preview shows page 1 - 2 out of 2 pages.

SCH4U ENERGY CHANGES & RATES OF REACTION 1. If EP decreases over time as the reaction proceeds then: A) EK increases as the total energy for an ideal system remains constant. B) If EK increases then the temperature will increase as it is a measure of the average EK. 2. Given that you have twice as much of object A it has the ability to absorb twice the amount of heat and given that it requires twice the heat to change a degree, then object A s temperature will increase only ¼ the amount of object B if they are exposed to the same temperature change. 3. Therefore you must remove 1.32 kJ of heat energy. 4. Therefore you can heat 49.6 g of water. 5. Remember that q metal = - q water A) Therefore 1.67 kJ of heat energy is transferred. B) Therefore the specific heat capacity of the metal is 4.65 J/g o C . 6. Remember that q metal = - q water A) Therefore 1.255 kJ of heat energy is transferred. B) Therefore the mass of the copper sample was 34.87 g .
Image of page 1
Image of page 2

You've reached the end of your free preview.

Want to read both pages?

  • Fall '16
  • Maheshwari
  • Chemistry, Hess Law, Thermochem

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes
A+ icon
Ask Expert Tutors