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mariarad [96]
2 years ago
9

Glass has a specific heat of 0.16 calories/gram°C.

Chemistry
2 answers:
Sloan [31]2 years ago
7 0
Calories heat added = Mass of glass times temp. increase times specific heat of glass

calories (small calories) = l.0 g x 20 degrees x .16 calories/gm/degree C = 3.2 calories
nignag [31]2 years ago
4 0

Answer:

3.2 calories

Explanation:

The state of aggregation of the glass does not change, as its temperature increases, it is a sensible heat, because it depends on its temperature.

The sensible heat formula is

Q= m.sh.T

sh= 0.16\frac{cal}{g C}

m= 1.0 g\\T= 20C

Q= 1.0 g.0.16\frac{cal}{gC} .20C\\ Q= 3.2 cal

<em>1.0 gram of glass will rise 20.0°C when 3.2 calories of heat are applied</em>

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The first, third and fourth statements are correct.

Explanation:

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<u />

2) For the following reaction at equilibrium: CaCO3(s)⇌ CaO(s) + CO2(g) increasing the total pressure by adding Ar(g) will shift the equilibrium to the right.

⇒ Le chatellier says that if we increase the pressure, the equilibrium will shift to the side with the least number of particles.

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If the pressure in the container is increased by adding an inert or non-reacting gas, nothing happens to the amounts of CO2, CaO or CaCO3. The added gas won't affect the partial pressure of CO2. <u>This statement is false. </u>

3)For the following reaction at equilibrium: 2 H2(g) + O2(g) ⇌ 2 H2O(g) the equilibrium will shift to the left if the volume is doubled.

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Answer:

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