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weqwewe [10]
1 year ago
11

Chegg an insulated rigid tank contains 12 kg of air at 200 kpa and 500 c. The tank valve is opened, and pressure reduces to 75 k

pa through an isentropic process. Determine the final temperature (k)
Chemistry
1 answer:
alekssr [168]1 year ago
8 0

In thermodynamics, the adiabatic and reversible system is the isotropic process. The final temperature of the system is 311.08 degrees celsius.

<h3>What are isotropic conditions?</h3>

Isotropic conditions are the process of the thermodynamic system that has no net transfer of heat.

Given,

Initial temperature = 773.15 Kelvin

Initial pressure = 200

Final pressure = 75

The final temperature is calculated as:

\rm \dfrac{T_{2}}{T_{1}} = \rm \dfrac{P_{2}}{P_{1}} ^{y- \frac{1}{y}}

Substituting values:

\begin{aligned}\rm \dfrac{T_{2}}{773} &= \dfrac{75}{200}^{1.4- \frac{1}{1.4}}\\\\&= 584.08 \;\rm kelvin\end{aligned}

Therefore, 584.08 K or 311.08 degrees celsius is the final temperature.

Learn more about the isotropic system here:

brainly.com/question/13497738

#SPJ4

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Given the partial equation:
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Answer : The balanced chemical equation in acidic medium will be,

IO_3^-(aq)+2Sn^{2+}(aq)+6H^+(aq)\rightarrow I^-(aq)+2Sn^{4+}(aq)+3H_2O(l)

Explanation :

Redox reaction or Oxidation-reduction reaction : It is defined as the reaction in which the oxidation and reduction reaction takes place simultaneously.

Oxidation reaction : It is defined as the reaction in which a substance looses its electrons. In this, oxidation state of an element increases. Or we can say that in oxidation, the loss of electrons takes place.

Reduction reaction : It is defined as the reaction in which a substance gains electrons. In this, oxidation state of an element decreases. Or we can say that in reduction, the gain of electrons takes place.

Rules for the balanced chemical equation in acidic solution are :

First we have to write into the two half-reactions.

Now balance the main atoms in the reaction.

Now balance the hydrogen and oxygen atoms on both the sides of the reaction.

If the oxygen atoms are not balanced on both the sides then adding water molecules at that side where the less number of oxygen are present.

If the hydrogen atoms are not balanced on both the sides then adding hydrogen ion (H^+) at that side where the less number of hydrogen are present.

Now balance the charge.

The given chemical reaction is,

IO_3^-(aq)+Sn^{2+}(aq)\rightarrow I^-(aq)+Sn^{4+}(aq)

The oxidation-reduction half reaction will be :

Oxidation : Sn^{2+}\rightarrow Sn^{4+}

Reduction : IO_3^-\rightarrow I^-

First balance the main element in the reaction.

Oxidation : Sn^{2+}\rightarrow Sn^{4+}

Reduction : IO_3^-\rightarrow I^-

Now balance oxygen atom on both side.

Oxidation : Sn^{2+}\rightarrow Sn^{4+}

Reduction : IO_3^-\rightarrow I^-+3H_2O

Now balance hydrogen atom on both side.

Oxidation : Sn^{2+}\rightarrow Sn^{4+}

Reduction : IO_3^-+6H^+\rightarrow I^-+3H_2O

Now balance the charge.

Oxidation : Sn^{2+}\rightarrow Sn^{4+}+2e^-

Reduction : IO_3^-+6H^++4e^-\rightarrow I^-+3H_2O

The charges are not balanced on both side of the reaction. Thus, we are multiplying oxidation reaction by 2 and the adding both equation, we get the balanced redox reaction.

Oxidation : 2Sn^{2+}\rightarrow 2Sn^{4+}+4e^-

Reduction : IO_3^-+6H^++4e^-\rightarrow I^-+3H_2O

The balanced chemical equation in acidic medium will be,

IO_3^-(aq)+2Sn^{2+}(aq)+6H^+(aq)\rightarrow I^-(aq)+2Sn^{4+}(aq)+3H_2O(l)

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