The activation energy for the reaction no2(g)+co(g)⟶no(g)+co2(g) is ea = 400 kj/mol and the change in enthalpy for the reaction

Answer: sunlight, water, air, habitat, and food.

Explanation: All living organisms rely on five fundamental necessities for survival: sunlight, water, air, habitat, and food.

Givens

• V1 = 5.00 L
• V2 =?
• T1 = 298 K
• T2 = 333 K

Formula

V1/T1 = V2/T2

Note: This will be applicable only if the pressure remains constant.

Solution

5.00L / 298 K = x / 333 K. Multiply both sides by 333 K.

5.00 * 333 / 298 = x 333/ 333

V2 = 5.59 L

Answer:

Indeed, the chemist is capable of identifying the compound present in the sample.

Explanation:

In one mole of K₂O, potassium has a mass of 2 × 39.1 g = 78.2 g, while the total mass of K₂O is 94.2 g. The mass ratio of K compared to K₂O is calculated as 78.2 g / 94.2 g = 0.830.

For 1 mole of K₂O₂, potassium's mass remains the same at 78.2 g, but the total mass of K₂O₂ is 110.2 g. The mass ratio of K to K₂O₂ then equates to 78.2 g / 110.2 g = 0.710.

When the chemist measures the mass of K in relation to the overall sample, the mass ratio can be computed.

• If the mass ratio is 0.830, then it indicates a pure K₂O compound.
• If the mass ratio is 0.710, it indicates a pure K₂O₂ compound.
• If the mass ratio falls outside of 0.830 or 0.710, the sample is assessed to be a mixture.

Answer:

This indicates that the enzyme is a type of protein.

Explanation:

It is important to remember that proteins are composed of vast numbers of amino acids. Because these amino acids are tiny units, they cannot function as a catalyst on their own.

However, when they form a polymer, the protein enzyme will possess varying shapes, sizes, and both physical and chemical attributes differing from a single monomer.

Additionally, for proteins to function actively, a specific number of amino acids must combine to create a distinct shape suited to interact with another molecule, thus accelerating the chemical reaction and functioning as an enzyme.