What element/compounds are used in the melting of ice?

1 answer:

8 0

The temperature of the air, pavement, and the type of ice-melt compound used will affect the rate at which the ice melts. There are many different ice-melt compounds available from traditional rock salt (sodium chloride) to ice-melt pellets (calcium chloride).

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PLEASE HELP ASAP WILL GIVE BRAINLIEST

kirill115 [55]

The amount of heat required to convert H₂O to steam is : 382.62 kJ

Given data :

Mass of liquid water ( m ) = 150 g

Temperature of liquid water = 43.5°C

Temperature of steam = 130°C

<h3 /><h3>Determine the amount of heat required </h3>

The amount of heat required = ∑ q1 + q2 + q3 ----- ( 1 )

where ;

q1 = heat required to change Temperature of water from 43.5°C to 100°C . q2 = heat required to change liquid water at 100°C to steam at 100°C

q3 = heat required to change temperature of steam at 100°C to 130°C

For q1

M* S $_{water}$ *ΔT

= 150 * 4.18 * ( 100 - 43.5 )

= 35425.5 J

For q2

moles * ΔHvap

= (150 / 18 )* 40.67 * 1000

= 338916.67 J

For q3

M * S $_{steam}$ * ΔT

= 150 * 1.84 * ( 130 -100 )

= 8280 J

Back to equation ( 1 )

Amount of heat required = 35425.5 + 338916.67 + 8280 = 382622.17 J

≈ 382.62 kJ

Hence we can conclude that The amount of heat required to convert H₂O to steam is : 382.62 kJ.

Learn more about Specific heat of water : brainly.com/question/16559442

6 0

2 years ago

What makes this inauguration different from the past?

Sveta_85 [38]

Answer:

there's just a lot of drama around grumpy trumpy's StOlEN eLecTiOn which are all just fake claims. all his hardcore followers are brainwashed into believing anything he says, so people (especially people who are inside the capitol) fear that trump's followers might incite violence AGAIN even after they broke into the Capitol on the 6th.

That's why they have the National Guard and thousands of people to keep the building secure during Biden's Inauguration.

hope this helps!

7 0

2 years ago

An experiment was conducted to determine the density of a rock sample. The table shows a partial record of the experiment.

mart [117]

Answer: the density of the rock

55.91g/ml

Explanation:

The density of the rock after it had being placed in the cylinder of water so the calculation should look like this:

Volume of water substract the mass of the rock:

And that is 142.5 ml - 86.59g =