Ask question

Ask question

All categories

3 years ago

14

Which of the following has more kinetic energy?

2 answers:

AlladinOne [14]3 years ago

8 0

Answer:

a car traveling 60 miles per hour

Explanation:

musickatia [10]3 years ago

6 0

A car traveling 60 miles per hour

You might be interested in

Which angles are right

Citrus2011 [14]

Right angle acute angle obtuse angle

5 0

3 years ago

Read 2 more answers

What is the volume of 0.9 g of O2 at STP?

GREYUIT [131]

I don’t sure but I think it is Assuming that the gas is at standard temperature and pressure (STP), one mole of any gas occupies 22.4 L . This means the number of moles of O2 is 222.4=0.089 mol .

3 0

3 years ago

The volume of a gas held at constant temperature varies indirectly as the pressure of the gas. If the volume of a gas is 1200 cu

kvasek [131]

Answer:

Volume of the gas at 500 mm Hg pressure is 960 $cm^{3}$

Explanation:

Let's assume the gas behaves ideally.

According to combined gas law for an ideal gas-

$\frac{P_{1}V_{1}}{T_{1}}=\frac{P_{2}V_{2}}{T_{2}}$

Where $P_{1}$ and $P_{2}$ are initial and final pressure of the gas respectively. $V_{1}$ and $V_{2}$ are initial and final volume of the gas respectively. $T_{1}$ and $T_{2}$ are initial and final temperature of the gas in kelvin respectively.

Here $T_{1}$ = $T_{2}$ , $V_{1}$ = 1200 $cm^{3}$ , $P_{1}$ = 400 mm Hg, $P_{2}$ = 500 mm Hg

So, $V_{2}=\frac{P_{1}V_{1}T_{2}}{T_{1}P_{2}}$

Hence $V_{2}=\frac{400\times 1200}{500}[tex]cm^{3}$ =960 $cm^{3}$ [/tex]

Hence volume of the gas at 500 mm Hg pressure is 960 $cm^{3}$

3 0

4 years ago

Match element to how many valence electrons it has

puteri [66]

Al - 3.

S - 6.

Mg - 2.

P - 5.

Si - 4.

3 0

4 years ago

Choose ALL the answers that apply.

-BARSIC- [3]

Answer:

Speeds up when temperature is increased and can travel through a solid

Explanation:

4 0

3 years ago