3 years ago

What is the total temperature change between 3km and 7km above earth's surface

Chemistry

1 answer:

leva [86]3 years ago

4 0

4km I believe is the answer

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Dry ice is solid carbon dioxide. Instead of melting, solid carbon dioxide sublimes according to the following equation: CO2(s)→C

GREYUIT [131]

Answer:

$m=8.79kg$

Explanation:

First of all we need to calculate the heat that the water in the cooler is able to release:

$Q=\rho * V*Cp*\Delta T$

Where:

Cp is the mass heat capacity of water
V is the volume
$\rho$ is the density

$Q=1 g/cm^3 *15000 cm^3*4.184 \frac{J}{g*^{\circ}C}*(10-90)^{\circ}C$

$Q=-5020800 J=-5020.8 kJ$

To calculate the mass of CO2 that sublimes:

$-Q=\Delta H_{sub}*m$

Knowing that the enthalpy of sublimation for the CO2 is: $\Delta H_{sub}=571 kJ/kg$

$5020.8 kJ=571 kJ/kg*m$

$m=\frac{5020.8 kJ}{571 kJ/kg}=8.79kg$

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If the stack of bricks on the right has a mass of 240 kg, approximately what is the mass of the stack of bricks on the left?

solong [7]

Answer:

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Explanation: study island

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The chemical formula for ethanol is C2H601.How many total atoms are in 30 molecules of ethanol?

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There are two carbon atoms in every ethanol molecule, so there would be 60 carbons all together.

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THIS IS A SCIENCE QUESTION NOT A CHEMISTRY QUESTION! Why does the same side of the moon always face Earth?

Norma-Jean [14]

Answer:yes

Explanation:Because yes

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Which substance is the most soluble at 60 degrees Celsius? How do you know?

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Answer:

NH4CL is the answer

Explanation:

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