Which law represents the thermodynamic statement of the conservation of energy of a system? a. the fourth law b. the first law c. the second law d. the third law

Hi!

The correct answer would be B. The first law.

The first law of thermodynamics is also known as the law of conservation of energy, and establishes that energy cannot be created or destroyed, and is only seen to be transformed from one form to another, in an isolated system.

For example, it may seem like pressing a button may generate light energy from a bulb, but it is actually the conversion of electrical energy into light energy.

Similarly, in a circuit run from battery, chemical energy (of the battery) is converted into light energy. This energy is seen to be converted into the form of heat energy which is emitted from the bulb.

Hope this helps!

show the diagram then i will answer

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =