Answer :
(A) The value of 
at 298 K is, 1521.9 kJ
(B) The value of at 3652 K is, -301.59 kJ
Explanation :
Part A :
where,
= standard Gibbs free energy = ?
= standard enthalpy = 1684 kJ = 1684000 J
= standard entropy = 543.7 J/K
T = temperature of reaction = 
Now put all the given values in the above formula, we get:
Part B :
where,
= standard Gibbs free energy = ?
= standard enthalpy = 1684 kJ = 1684000 J
= standard entropy = 543.7 J/K
T = temperature of reaction = 
Now put all the given values in the above formula, we get:
<span>A temperature measuring device should be placed in the "warmest" area of the refrigerated holding unit. The reason for this is because all foods must be stored in the minimum temperature required. If not stored properly the foods become hazardous. It is important to place the thermometer in the accurate location in reference to this question it is in the warmest location. The reasoning behind this is that if placed in the coldest location it may not represent an accurate temperature based on the entire unit.</span>
Answer:
Explanation:
We have to many data in different system, so we need transform everything to SI, that is
When we have all this values in SI apply a Energy Balance Equation,
![\dot{Q}_{cv}-\dot{W}_{cv}+\dot{m}[(h_1-h_2)+(\frac{V_1^2-V_2^2}{2})+g(z_1-z_2)]=0](https://tex.z-dn.net/?f=%5Cdot%7BQ%7D_%7Bcv%7D-%5Cdot%7BW%7D_%7Bcv%7D%2B%5Cdot%7Bm%7D%5B%28h_1-h_2%29%2B%28%5Cfrac%7BV_1%5E2-V_2%5E2%7D%7B2%7D%29%2Bg%28z_1-z_2%29%5D%3D0)
Solving for V_2
From the table of gas properties we calculate for 
and 
For T_2;
Substituting in equation for V_2
Answer: OLEDs
Explanation:
The nanotechnology uses the surface of the carbon materials to generate the electricity. The evaporation of water on the surface of carbon materials helps in generation of electrical energy due to generation of thermal energy.
OLEDs can be defined as solid-state devices that comprises of organic molecules like carbon that will create electricity by exposing a surface for generation of thermal energy.
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