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Alla [95]
3 years ago
10

What does the specific heat for a substance indicate

Chemistry
2 answers:
BigorU [14]3 years ago
6 0
Yes this is know as the c value. It is usually used in q=mc change in temperature
olga nikolaevna [1]3 years ago
5 0

Explanation:

Specific heat of the substance indicates the amount of heat or energy required to raise the temperature of the unit mass of the substance by one unit degree Kelvins.

It is measured in joules per gram degree Kelvin or J/Kg.^oK.

c=\frac{Q}{m\times \Delta T}

Q = Amount of heat absorbed by the substance in joules

c = Specific heat of the substance

m = Mass of substance in Kg

\DeltaT = Change in temperature in Kelvins

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Matter with indefinite shape and volume"
ladessa [460]
The answer is Gas i would say
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3 years ago
The empirical formula for this compound that contain 31.14%sulfur and 68.86%chlorine by mass
Kaylis [27]

The empirical formula is SCl_2.

The <em>empirical formula</em> (EF) is the simplest whole-number ratio of atoms in a compound.

The ratio of atoms is the same as the ratio of moles.

So, our job is to calculate the <em>molar ratio </em>of S to Cl.

Assume that you have 100 g of sample.

Then it contains 31.14 g S and 68.86 g Cl.

<em>Step</em> 1. Calculate the <em>moles of each element</em>

Moles of S = 31.14 g S × (1 mol S/(32.06 g S) = 0.971 30 mol S  

Moles of Cl = 68.86 g Cl × (1 mol Cl/35.45 g Cl) = 1.9425 mol Cl

<em>Step 2</em>. Calculate the <em>molar ratio</em> of each element

Divide each number by the smallest number of moles and round off to an integer

S:Cl = 0.971 30: 1.9425 = 1:1.9998 ≈ 1:2

<em>Step 3</em>: Write the <em>empirical formula</em>

EF = SCl_2

5 0
3 years ago
Which characteristic of water helps it form strong bonds with other water molecules?
Solnce55 [7]

Answer:

The correct answer is Polar structure. See the explanation below, please.

Explanation:

The water molecule is formed by the union of an oxygen atom (O) to two hydrogen atoms (H), forming at an angle of 105 °, having the negative electron density over the O and positive over the H. The water due to its polarity can interact with other equal molecules, by hydrogen bridge (occurs between the atom of H and an electronegative element, in this case the O). It corresponds to a type of dipole-dipole interaction.

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3 years ago
The value for ψ in root tissue was found to be -1.6 bars. If you place the root tissue in a 0.1 m solution of sucrose at 20°c in
Allisa [31]

Answer:

\Psi=\Psi_s+\Psi_p\\

I=1;C=0.1;R=0.0831\\

T=20+273=293~C\\

as beaker is open so

\Psi_p=0\\

\Psi=\Psi_s\\\Psi=-2.43483

As ψof solution is lower than the root tissue so water will move out of the root to the solution

Explanation:

8 0
4 years ago
Consider the chemical equations shown here.
Ostrovityanka [42]

Answer:

-890

Explanation:

8 0
3 years ago
Read 2 more answers
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