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4 years ago

Even though the process is endothermic, snow can sublime. Which tendency in nature accounts for this phase change?

2 answers:

7 0

Even though the process is endothermic, snow can sublime. The tendency in nature that accounts for this phase change is that there is a tendency toward greater entropy. The answer is number 1. The rest of the choices do not answer the question above.

bezimeni [28]4 years ago

5 0

<u>Answer:</u> The correct answer is Option 1.

<u>Explanation:</u>

It is given that the process is endothermic which means that $\Delta H=+ve$

The snow is subliming which means that it is changing its state from solid state to gaseous state directly and for this phase change to take place, $\Delta G$ must be negative.

As, for sublimation process, $\Delta S$ is always increasing and for spontaneous reaction, temperature must also be high.

$\Delta G=\Delta H-T\Delta S$

$-ve=+ve-T(+ve)$

At higher temperature, $\Delta G$ will always be negative and it will be spontaneous reaction and phase change will occur.

Hence, the correct answer is Option 1.

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On which part of the carbon cycle have humans had the greatest impact? storage of co2 in the oceans all of the answer options ha

yarga [219]

Hello!

The part of the carbon cycle where humans had the greatest impact is the return of CO₂ to the atmosphere by burning of ancient organic matter.

The ancient organic matter is also called Fossil Fuels. Some Fossil Fuels are Petroleum and Coal. Fossil Fuels are used to power our society and are burned to provide energy for power plants and vehicles, and by burning them, Carbon Dioxide (CO₂) is produced, increasing the natural concentration of this compound in the atmosphere.

Have a nice day!

4 0

3 years ago

For work to be done on an object:

Mazyrski [523]

Answer:

The object has to move a distance when a force is applied to it

Explanation:

For work to be done on a body the force applied must move the body through a particular distance.

Work done = Force x distance

If no distance is moved by the force, no work is done.

Also, the angle between the force and the distance must be 0 to do the maximum work on the body.

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3 years ago

A student heats the same amount of two different liquids over Bunsen burners. Each liquid is at room temperature when the studen

ZanzabumX [31]

If Liquid 1 has a higher specific heat than Liquid 2, then Liquid 1 will take longer to increase in temperature because the higher specific heat of a liquid needs more thermal energy for heating a liquid.

<h3>What is specific heat?</h3>

Specific heat of a substance refers to the quantity of heat that is required to raise the temperature of one gram of a substance by one Celsius degree so we can conclude that Liquid 1 will take longer to increase in temperature

Learn more about heat here: brainly.com/question/24390373

7 0

3 years ago

Each of the following values was read on an instrument of measuring device. In each case the last digit was estimated. Tell what

Drupady [299]

Answer:

Explanation:

6 0

3 years ago

The energy of colored light increases in the order red, yellow, green, blue, violet.List the metallic elements used in the flame

Vinil7 [7]

Answer:

Explanation:

Flame test:

The metals ions can be detected through the flame test. Different ions gives different colors when heated on flame. Tom perform the flame test following steps should follow:

1. Dip a wire loop in the solution of compound which is going to be tested.

2. After dipping put the loop of wire on bunsen burner flame.

3. Observe the color of flame.

4. Record the flame color produce by compound

Color produce by metals:

Red = Lithium, zirconium, strontium, mercury, Rubidium (red violet)

Orange-red = calcium

Yellow = sodium, iron (brownish yellow)

Green = green

Blue = cesium. arsenic, copper, tantalum, indium, lead

Violet = potassium (lilac)

3 0

4 years ago