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bogdanovich [222]
3 years ago
9

What is the specific heat of silicon if the temperature of a 4.11 g sample of silicon

Chemistry
1 answer:
monitta3 years ago
4 0

Answer:

The right solution is "0.7107 J/g°C".

Explanation:

The given values are:

Mass,

m = 4.11 g

Temperature,

ΔT = 3.8°C

Heat,

Q = 11.1 J

The specific heat of silicon will be:

⇒  C=\frac{Q}{m \Delta T}

On substituting the values, we get

⇒      =\frac{11.1}{4.11\times 3.8}

⇒      =\frac{11.1}{15.618}

⇒      =0.7107 \ J/g^{\circ}C

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Answer:

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6 0
2 years ago
A solution of acetic acid and water contains 205.0 g L-1 of acetic acid and 820.0 g L-1 of water. Compute the density of the sol
LekaFEV [45]

Answer:

\rho_t=1025000 gmL^{-1}

Explanation:

From the question we are told that:

Density of acetic acid \rho_a=205 gL^{-1}

Density of Water \rho_w=820 gL^{-1}

Generally the equation for Solution Density is mathematically given by

\rho_t= \rho_w+\rho_a

\rho_t=205+820

\rho_t=1025 gL^{-1}

\rho_t=1025000 gmL^{-1}

6 0
3 years ago
A student is trying to develop a model of an instant heat pack. What is the essential characteristic of the chemical reaction th
Lana71 [14]

The standard enthalpy of reaction should be negative.

<h3>What is enthalpy?</h3>

A thermodynamic quantity equivalent to the total heat content of a system. It is equal to the internal energy of the system plus the product of pressure and volume.

Inside the heat pack are two chemicals that get mixed when you smush them together. As they mix, some weak bonds are broken, which takes a little bit of energy. But new, stronger bonds form which release energy. Releasing that energy causes the surroundings to heat up.

Hence, option B is correct.

Learn more about enthalpy here:

brainly.com/question/13775366

#SPJ1

3 0
2 years ago
Carbon tetrachloride is made according to the following reaction:
Korolek [52]
I think thats the answer but feel free to check my work

3 0
4 years ago
Plz answer very easy question
Vinvika [58]
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