What is the approximate energy required to raise the temperature of 1.00 l of hydrogen by 90 °c? the pressure is held constant and equal to 1 atm.

Q = 116.8 J

Explanation:

Here given that the temperature of 1 L hydrogen is increased by 90 degree C at constant pressure condition.

So here we will have

here we know that

n = number of moles

for ideal diatomic gas molar specific heat capacity at constant pressure is given as

now we have

a 2,000 calorie based diet.

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 =