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noname [10]
3 years ago
7

How does temperature relate to density? A- As temperature increases density increases. B- As temperature decreases density decre

ases. C- As temperature decreases density increases. D- Temperature does not change density.
Chemistry
1 answer:
SVEN [57.7K]3 years ago
8 0

Answer:

The answer is c

Explanation:

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(06.03 MC) A 50.0 mL sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. What i
oee [108]

Answer:

New volume is 25.0 mL

Explanation:

Let's assume the gas sample 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} represent initial and final pressure respectively

V_{1} and V_{2} represent initial and final volume respectively

T_{1} and T_{2} represent initial and final temperature (in kelvin) respectively

Here, T_{1}=T_{2}, V_{1}=50.0mL, P_{1}=20.0atm and P_{2}=40.0atm

So, V_{2}=\frac{P_{1}V_{1}T_{2}}{P_{2}T_{1}}=\frac{(20.0atm)\times (50.0mL)}{40.0mL}=25.0mL

So, the new volume is 25.0 mL

6 0
3 years ago
If heat energy is transferred from direct contact between a warm object and a cold object, it has been transferred by __________
Ganezh [65]

If heat energy is transferred from direct contact between a warm object and a cold object, it has been transferred by Convection.

Heat is transferred through convection, which is the large-scale movement of molecules inside gases and liquids. Conduction is used to move heat from the object to the fluid initially, but fluid motion is responsible for the bulk of the heat transfer.

The transfer of heat between two bodies by currents of moving gas or fluid is known as convection on heat transfer. In free convection, air or water rises and is replaced by a cooler parcel of air or water as it moves away from the hot body.

To learn more about convection please visit -
brainly.com/question/16635311
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1 year ago
How was the position of planet Uranus predicted?
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Upon studying the orbit of Uranus more closely, astronomers realized its orbit was being affected by the presence of another very large mass - so the hunt was on for another large planet. He sent his prediction to the Astronomer Royal, Sir George Airy, who passed it on to an 'observer'.

más inteligente o gracias por favor :)) <33 / brainliest or a thank you please :)) <33

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3 years ago
What new technology might we be able to use in the future to provide for most all of our energy needs?
Ostrovityanka [42]
Fusion

Fusion is the process where two light nuclei combine together releasing vast amounts of energy. As a future energy source, fusion will have advantages as the absence of carbon emissions. The only by-products of fusion reactions will be negligible quantities of helium which do not contribute to pollution.


7 0
4 years ago
Which bond is the strongest CO <br> CF CN CC?
romanna [79]

Answer:

The CN double bond and triple bond are stronger than the corresponding CC bonds

Explanation:

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