Mastery – Heat and Work: First Law – Calculate Change in Energy
OWLv2 for General Chemistry
Cengage
01st Edition
Joules of heat and work are given for a car engine pushing pistons. What is ∆E?
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Joules of heat and work are given for a car engine pushing pistons. What is ∆E?
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Joules of work and ∆E are given for a chemical reaction. You are also told if work is done on the system or by the system. What is q in Joules?
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Joules of heat carried away by the cooling system of a car engine and ∆E are given. What is w in Joules?
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In the lab a student discovers x Joules are needed to increase the temp of x grams of an item from x degrees to x degrees. You are asked for the specific heat.
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You are given the mass in grams and velocity in m/s of a moving object. Calculate kinetic energy.
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Three scenarios are given. For each of these, does KINETIC energy increase or decrease?
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Three scenarios are given. For each of these, does POTENTIAL energy increase or decrease?
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A sample of a substance has x joules of energy and x grams. You are given either the initial temperature or the final temperature and asked for the other. This solver works to solve for either initial or final temperature.
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You need to determine the amount of energy used to change the temperature of x grams of a substance from x degrees to x degrees.
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The diameter, mass, and speed of a golf ball are given. What is the wavelength?
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