Practice: A radioactive particle weighing 7.20 x 103 ng is found 110 m above the earth’s surface. What is its potential energy?
Subjects
Sections | |||
---|---|---|---|
Nature of Energy | 6 mins | 0 completed | Learn |
Kinetic & Potential Energy | 8 mins | 0 completed | Learn |
First Law of Thermodynamics | 7 mins | 0 completed | Learn |
Internal Energy | 8 mins | 0 completed | Learn |
Endothermic & Exothermic Reactions | 7 mins | 0 completed | Learn Summary |
Heat Capacity | 16 mins | 0 completed | Learn |
Constant-Pressure Calorimetry | 20 mins | 0 completed | Learn |
Constant-Volume Calorimetry | 8 mins | 0 completed | Learn |
Thermal Equilibrium | 9 mins | 0 completed | Learn |
Thermochemical Equations | 12 mins | 0 completed | Learn Summary |
Formation Equations | 9 mins | 0 completed | Learn |
Enthalpy of Formation | 12 mins | 0 completed | Learn Summary |
Hess's Law | 23 mins | 0 completed | Learn |
Additional Guides |
---|
Enthalpy |
Mechanical Energy is the energy associated with an object's velocity (Kinetic Energy) and its position (Potential Energy).
The kinetic energy of a gas molecule is connected to its mass in kilograms and velocity in meters per second.
The potential energy of a gas molecule is connected to its mass, acceleration due to gravity and height above the ground.
Example #1: Calculate the kinetic energy (in kJ) of an electron (m = 9.11 x 10-31 kg) moving at 1.59 x 1020 m/s.
Practice: A radioactive particle weighing 7.20 x 103 ng is found 110 m above the earth’s surface. What is its potential energy?
Example #2: A neutron weighing 1.67 x 10-27 kg is shot from a laser projector that is mounted 120.0 meters above the ground. What is its speed when it hits the ground?
Enter your friends' email addresses to invite them:
Join thousands of students and gain free access to 46 hours of Chemistry videos that follow the topics your textbook covers.