N instrument uses a battery that provides 500 J of energy for 1200 seconds. What is the power of the instrument?
What do you know?
power = ; energy =500 ; time = 1200
Use the formula.
P = =
State the power in watts.

In a system, when potential energy decreases, then entropy also decreases. true false

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.

How do you count the total number of atoms present on one side of a chemical equation?