Astudent wants to study the effect of removing thermal energy from a system. which of the following experiments should the student perform? a. close a circuit by adding a penny and record if the bulb glows. b. close a circuit by adding a nail and record if the bulb glows. c. gradually warm a liquid and record its change in state. d. gradually cool a gas and record its change in state.

D. Gradually cool a gas and record its change in state.

Explanation:

you are removing thermal energy

The answer is Gradually cool a gas and record its change in state. D

Explanation:

This is true because the student is studying the effect of REMOVING thermal energy from a system. So obviously, you have to cool it.

Also, this was on my test and the test said this was the correct answer so I can't be wrong

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an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme