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3 years ago

What ive learned about heat,sound and light

Chemistry

1 answer:

steposvetlana [31]3 years ago

8 0

Answer:

they are all in parts of our life and we need them each for surviving.

Explanation:

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How much energy is required to raise the temperature of 10.6 grams of gaseous neon from

Alona [7]

Answer:

Approximately $1.95 \times 10^{2}\; \rm J$ .

Explanation:

Look up the specific heat of gaseous neon:

$c = 1.03 \; \rm J \cdot g^{-1} \cdot K^{-1}$ .

Calculate the required temperature change:

$\Delta T = (37.9 - 20.0)\; \rm K = 17.9\; \rm K$ .

Let $m$ denote the mass of a sample of specific heat $C$ . Energy required to raise the temperature of this sample by $\Delta T$ :

$Q = c \cdot m \cdot \Delta T$ .

For the neon gas in this question:

$c = 1.03\; \rm J \cdot g^{-1}\cdot K^{-1}$ .
$m = 10.6\; \rm g$ .
$\Delta T = (37.9 - 20.0)\; \rm K = 17.9\; \rm K$ .

Calculate the energy associated with this temperature change:

$\begin{aligned}Q &= c \cdot m \cdot \Delta T \\ &= 1.03\; \rm J \cdot g^{-1}\cdot K^{-1} \times 10.6\; \rm g \times 17.9\; \rm K \\ &\approx 1.95 \times 10^{2}\; \rm J\end{aligned}$ .

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3 years ago

Can someone help me with problem 21.105? Many thanks!

Reika [66]

The correct answer is 1 to the 3rd power

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2 years ago

As the number of carbons increases in an homologous series the melting and boiling point generally_________ *

Oliga [24]

ANSWER: Increase

why? Because the number of C atoms in homologous series increases gradually.

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3 years ago

Read 2 more answers

How many moles of tungsten (W,183.85 g/lol are in 415 grams of tungsten?

vladimir1956 [14]

Given mass of tungsten, W = 415 g

Molar mass of tungsten, W = 183.85 g/mol

Calculating moles of tungsten from mass and molar mass:

$415 g * \frac{1 mol}{183.85 g} = 2.26 mol W$

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3 years ago

chemical properties a. include changes of state of a substance b. include mass and color c. include changes that alter the ident

8_murik_8 [283]

C. Include changes that alter the identity of a substance.

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3 years ago

What ive learned about heat,sound and light​

What ive learned about heat,sound and light