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3 years ago

Explain how heat transfer affects weather. PLEASE HELP MEEEE

Chemistry

2 answers:

rusak2 [61]3 years ago

8 0

When there is a transfer of heat a wind usually blows from where the heat is transferred from

il63 [147K]3 years ago

4 0

Heat transfers can affect the climate making a cooler climate warmer. Heat transfers also create winds.

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PLSSSSS HELP I DONT GET THIS PROBLEMMMM

Aleks [24]

Answer:

C. 7370 joules.

Explanation:

There is a mistake in the statement. Correct form is described below:

<em>Using the above data table and graph, calculate the total energy in Joules required to raise the temperature of 15 grams of ice at -5.00 °C to water at 35 °C. </em>

The total energy needed to raise the temperature is the combination of latent and sensible heats, all measured in joules, and represented by the following model:

$Q = m\cdot [c_{i} \cdot (T_{2}-T_{1})+L_{f} + c_{w}\cdot (T_{3}-T_{2})]$ (1)

Where:

$m$ - Mass of the sample, in grams.

$c_{i}$ - Specific heat of ice, in joules per gram-degree Celsius.

$c_{w}$ - Specific heat of water, in joules per gram-degree Celsius.

$L_{f}$ - Latent heat of fusion, in joules per gram.

$T_{1}$ - Initial temperature of the sample, in degrees Celsius.

$T_{2}$ - Melting point of water, in degrees Celsius.

$T_{3}$ - Final temperature of water, in degrees Celsius.

$Q$ - Total energy, in joules.

If we know that $m = 15\,g$ , $c_{i} = 2.06\,\frac{J}{g\cdot ^{\circ}C}$ , $c_{w} = 4.184\,\frac{J}{g\cdot ^{\circ}C}$ , $L_{f} = 334.72\,\frac{J}{g}$ , $T_{1} = -5\,^{\circ}C$ , $T_{2} = 0\,^{\circ}C$ and $T_{3} = 35\,^{\circ}C$ , then the final energy to raise the temperature of the sample is:

$Q = (15\,g)\cdot \left[\left(2.06\,\frac{J}{g\cdot ^{\circ}C} \right)\cdot (5\,^{\circ}C)+ 334.72\,\frac{J}{g} + \left(4.184\,\frac{J}{g\cdot ^{\circ}C}\right)\cdot (35\,^{\circ}C) \right]$

$Q = 7371.9\,J$

Hence, the correct answer is C.

8 0

3 years ago

The volume of 0.6305 kg of a liquid is 0.430 L. What is its density in g/mL

motikmotik

Answer: 1.466 g/mL

Explanation:

$\frac{0.6305 \text{kg}}{0.430 \text{L}} \cdot \frac{1000 \text{g}}{1 \text{kg}} \cdot \frac{1 \text{L}}{1000 \text{mL}} = 1.466 \,\frac{\text{g}}{\text{mL}}$

6 0

2 years ago

Calculate the molarity of a solution containing 21.9g of MgCl, in enough water to

Monica [59]

Find moles of MgCl first by dividing by the molar mass.

21.9 g / 95.211 g/mol = 0.230 mol MgCl

Then divide by L of water to get the molarity.

0.230 mol / 0.750 L = 0.307 M MgCl

3 0

3 years ago

PLEASE HELP!! I need these before 12!

Aloiza [94]

Answer:

1. 32

2. 28

3. 46

4. 57

5. 13

6. 32

7. 21

Explanation:

8 0

3 years ago

propose a mechanism (curved arrows) for the following sn1 reaction. based on the mechanism, do you think that the products will

UNO [17]

In SN1 reaction, the products will be formed as a racemic mixture.

<h3>What is racemic mixture?</h3>

Racemic mixture also called racemate, a mixture of equal quantities of two enantiomers, or substances that have dissymmetric molecular structures that are mirror images of one another.

<h3>What is SN1 reaction?</h3>

SN1 reaction corresponds to unimolecular nucleophilic substitution reaction. The order of reaction is one. The hydrolysis of tert-butyl bromide with aqueous NaOH solution is an example of SN1 reaction.

<h3>Why in SN1 reaction products will be formed as a racemic mixture?</h3>

The carbocation and its substituents are all in the same plane, meaning that the nucleophile can attack from either side. As a result, both enantiomers are formed in an the SN1 reaction, leading to a racemic mixture of both enantiomers.

Know more about SN1 reaction visit the link

brainly.com/question/25240698

#SPJ4

4 0

1 year ago