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Puberty
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∙ 11y ago
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Explain why a phase changes are a property of an atom?
Because atoms only go through phase changes
Examples of three phase balanced load used in industries?
* 3 phase motors * resistance heaters
Why do you have voltage to ground but not voltage phase to phase?
There is phase to phase voltage in 3 phase system.AnswerYou don't get voltage 'phase-to-phase'; it's 'line-to-line'!
What are the three types of phase on its final phase?
single phase, double phase & three phase
Is 10 kva supply to 3 phase load is equal to 10kva supply to single phase load?
Yes of course!! 10 kva electrical power is 10 kva electrical power either it would be three phase or single phase. But other factors i.e. current, voltage changes accordingly. Actually this question is quit confusable. Because in 3phase system, if each phase gives 10kva power (single phase power = 10 kva) then 3 phase power will be 10 X 3 = 30 Kva If we go leteratualy towasrds the question, then the asnwer will be - No. becasue 10 kva supply to 3 phase load will be 3phase supply(i.e440V) & 10kva supply to single phase load will be single supply (i.e 250V).
Melting is an example of a?
Melting is an example of a phase change. The substance is going from the solid state to the liquid state.
Is wood a sublimatory substance?
No. A sublimatory substance changes from the solid phase directly to the gas phase without passing through a liquid phase. Two examples are dry ice (solid CO2) and iodine.
Why phase changes are reversible'?
Phase changes are accompanied with optical contrast and therefore the feasibility of phase.
What are phase changes?
its physical changes
What are the phase changes of matter?
The melting phase changes are Solid~Liquid~Gas and the freezing phase changes are Gas~Liquid~Solid
What does a liquid become when you cool it and it changes phase?
When you cool a liquid and it changes phase, it becomes a solid.
What are changes in phase physical changes?
Because it changes its form.
Are phase changes physical or chemical in nature?
A phase change is a physical change. It is not a chemical change.
Explain why a phase changes are a property of an atom?
Because atoms only go through phase changes
What phase changes require the addition of energy?
Phase changes requiring the addition of heat energy are the phase changes from solid to liquid, liquid to gas, and solid to gas. These phase changes are termed melting (solid to liquid), evaporation (liquid to gas), and sublimation (solid to gas).
Are phase changes in chemistry physical changes?
YES
What changes directly from a solid phase to a gas phase?
sublimation
