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Leona [35]
3 years ago
13

When you get into a parked car in the summer time, the metal clip on the seat belt is often too hot to touch, while the seat bel

t fabric is not. What has a higher specific heat, the metal clip or the seat belt fabric? Explain your answer using the definition of specific heat.
Chemistry
2 answers:
galina1969 [7]3 years ago
8 0
THE METAL CLIP BECAUSE IT METAL AND THE SUN SHINE AND THE FABRIC IT LIKE A CLOTH IT DONT GET HOT LIKE THT  UNLESS YOU UT IT IN A DRIANER
Sholpan [36]3 years ago
3 0
Specific heat in really simple terms is the heat required to raise the temperature of something or how easily something can gain heat. The more energy required to raise the temperature of an object creates a higher specific heat. Since it was difficult for the seat belt to heat up the seat belt would have a higher specific heat. Things with higher specific heat numbers take more energy to heat up and cool down like water. A swimming pool sitting in the sun will take a long time to raise its temperature but then is able to keep that temperature for awhile as well. (That's why the water is warm when you swim at night).
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Fudgin [204]

Answer:

a. The new pressure is 606,25 Torr.

b. -243,9°C is needed to reach the pressure of 7250 Torr.

Explanation:

Gay Lussac's law for gases says that if the volume in a gas remains constant, the pressure will be directly proportional to the temperature change.

P1 . T1 = P2. T2

(Temperature must be in K)

725 Torr . 291 K = P2 . 348 K

(725 Torr . 291 K) /348 K = P2

606,25 Torr = P2

725 Torr . 291K = 7250 Torr . T2

(725 Torr . 291K) /7250 Torr = T2

29,1 K = T2

T° K - 273 = T°C

29,1 K -273 = -243,9°C

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4 years ago
Part a the disproportionation of mn2+(aq) to mn(s) and mno2(s) in acid solution at 25 ∘c. calculate δg∘rxn.
ollegr [7]

Answer:

ΔG^{o} = -461198.3 J

Explanation:

Gibbs free energy is defined as the energy associated with a given chemical reaction which can be used to do work. Firstly, we need to figure out the chemical equation for the given problem. For the given problem, the chemical equation is:

Mn^{2+} _{(aq)} + 2e^{-}⇒Mn_{(s)}      E^{o} = -1.18 V

Mn^{2+} _{(aq)} + H_{2}O ⇒MnO_{2(s)} +4H^{+} + 2e^{-}E^{o} = -1.21 V

The addition of the two E^{o} gives the E_{cell} of the equation, i.e. -1.18-1.21 = -2.39 V.

Then, using the equation for ΔG^{o}, we have:

ΔG^{o} = n*F*E^{o} = 2*96485*-2.39 = -461198.3 J

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4 years ago
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Nastasia [14]
I believe it is A or D. since "<span>Scientific bias is the assumption that a </span>theory<span> is true or false without evidence one way or another, or the attempt to dismiss or discourage research efforts to confirm or deny the </span>theory<span> "</span>
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4 years ago
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RoseWind [281]
The epicardium (external layer), the myocardium (middle layer) and the endocardium (inner layer).
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erastova [34]

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