Answer:
Generally, a solid changes into liquid and then into gas state.
But the process of transistion of solid directly into gas without passing throuhg the intetmidiate stage, liquid is called sublimation.
Some of uses of sublimation are:
- Sublimation helps to dry substance within getting moist. This process of sublimation is also beneficial in medicine.
- Piriciple of sublimation is used in air freshener solids used in room and toilets.
- Dry ice is the solid form CO2 gas whose sublimation is used as cooling agent and storing dead bodied.
- Camphor, a substance used in houseold sublimes to give a pleasant smell inside the house.
B. oxygen
Source:" The enzymatic reactions of cellular respiration begin in the cytoplasm, but most of the reactions occur in the mitochondria. Cellular respiration occurs in the double-membrane organelle called the mitochondrion. The folds in the inner membrane are called cristae."
Hello There! ^_^
Your question: What is the pressure of a fixed volume of hydrogen gas at 38.8°C if it has a pressure of 1.36 atm at 15.0°C..?
Your answer: P1/ T1= P2/ T2
Change C to Kelvin
273+ C= K
38.3+ 273= 311K
15.0+ 273= 288K
2.38/ 288= P2/ 311.3
740.894= 288 (P2)
P2= 2.57 atm.
Thus, you got you answer!
Hope this helps!
<span>The molar mass of the Formaldehyde is about 30 gram per mol which means it goes like 90/30 =3.
So, the molecular formula would be 3 times the empirical formula. C3H6O3.</span>