Which process is endothermic but involves only a physical change?
A)frying an egg
B)boiling a liquid
C)burning wood
D)freezing water

Question

Which process is endothermic but involves only a physical change?
A)frying an egg
B)boiling a liquid
C)burning wood
D)freezing water

surry99 · Answer

Do you know the definition for an endothermic reaction?

dedi · Answer

I think its  the absorption of heat.

surry99 · Answer

great...so which of the above requires you to add heat?

dedi · Answer

is it a

surry99 · Answer

Excellent!

dedi · Answer

OKay thanks

surry99 · Answer

hang on ...it says it involves a physical change only

surry99 · Answer

What about b ...do you have to add energy to boil a liquid?

surry99 · Answer

When you fry an egg is there a chemical change?
If so, a cant be correct.

anonymous · Answer

B definable $$water \rightarrow boiling water $$$$boiling water \rightarrow water $$ reversable...