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Almost all chemical changes release or take in energy, and thus do result in changes in temperature.
It increases the potential energy of the molecules, since they separate from each other.
It increases the collisions that result in a reaction. or it increases the kinetic energy of the molecules.
It increases the collisions that result in a reaction. or it increases the kinetic energy of the molecules.
No, a change in temperature does not cause an observable change in mass. There are some limitations to this statement, however. Though special relativity states that mass is dependent upon momentum, and increasing temperature leads to increasing kinetic energy of molecules, the mass of the overall system does not change when weighed. The reason for this result is that the system is weighed in a frame of reference where it has no net momentum. So though the mass of the individual particles changes slightly with temperature, the system will not appear to have a different mass when measured.
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You subtract the initial from the after, and the result is the change. If the initial temperature is 50º and the after is 70º, then the change is +20º.
Sometimes this is possible.
Heat energy.
The kinetic energy will increase
The Kinetic energy will increase
The kinetic energy will increase