Thermal energy is heat transferred through conduction by direct contact.<br> A. True<br> B.False

5. A gas with a volume of 300 Liters at 295 kPa is allowed to expand to a volume of 350 Liters. What is the final pressure insid

storchak [24]

Answer:

Explanation:

The new pressure can be found by using the formula

$P_2 = \frac{P_1V_1}{V_2} \\$

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

From the question we have

$P_2 = \frac{300 \times 295}{350} \\ = 252.85714$

We have the final answer as

Hope this helps you

3 0

3 years ago

Hen the power goes off, Jack does not have a flashlight so he uses a glow stick to provide light but he wonders how he could imp

katrin [286]

Answer:

A

Explanation:

I study physics

6 0

3 years ago

The degree of polarity of a chemical bond in a molecule of a compound can be predicted by determining the difference in the

eimsori [14]

The correct answer is option 3. The degree of polarity of a chemical bond in a molecule of a compound can be predicted by determining the difference in the electronegativities of the atoms in a molecule of the compound. Electronegativities of the atom tell how the electrons are distributed in the molecule.

8 0

4 years ago

When Johann Schweigger invented the first galvanometer, what did he recognize could be used to measure current:"

lukranit [14]

He improved and followed from the works of Luigi Galvani, which used a 'frog galvanoscope' as a prototype of measuring current. He recognized that a compass could actually measure current, given that it is placed near coil of wire.

6 0

4 years ago

A student is adding DI water to a volumetric flask to make a 50% solution. Unfortunately, he was not paying attention and filled

dalvyx [7]

Answer:

His results will be skewed because there was more water than stock solution. Which would cause the percentage solution to be less than 50% therefore the density would be less than the actual value.

Explanation:

The solution will have percentage less than that of 50%. Therefore the density would be less than the actual value.

Suppose there should be 50 mL of the solution, and he added 60 mL. So 10 mL of the solution is added more.

Suppose the mass of the solute is m.

Originally, the density is = $\frac{m}{50}$ $\left(\frac{\text{mass}}{\text{volume}}\right)$

Now after adding extra 10 mL , the density becomes $\frac{m}{60}$ .

Therefore, $\frac{m}{50}>\frac{m}{60}$

So the density decreases when we add more solution.

4 0

3 years ago

Thermal energy is heat transferred through conduction by direct contact. A. True B.False