Answer:
The total heat content of the system.
Explanation:
- Enthalpy is a thermodynamic quantity equivalent to the total heat content of a system.
- Enthalpy is equal to the system's internal energy plus the product of its pressure and volume.
- In a system enclosed so as to prevent matter transfer, for processes at constant pressure, the heat absorbed or released equals the change in enthalpy.
So, the right choice is: The total heat content of the system.
All you need to do is to look at both sides of the equation and see who has the same element, state, coefficient, and charge and those will be your spectator ions.
In this question, the spectator ions would be 
and 
.
Answer:
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Explanation:
The <em>blue whale </em>is the largest animal on Earth. The length of a blue whale is about 25 m, although is is said the largest confirmed measure is 29.9m.
The<em> tiny frogs </em>measure about 10mm.
You can estimate the number of tiny frogs that have the same <em>length</em> as a blue whale dividing the approximate average length of a blue whale by the approximate average length of the tiny frogs.
First convert 25m to mm:
- 25m × 1,000mm/m = 25,000 mm
Now, divide:
Hence, about 2,500 <em>tiny frogs sitting next to each other would measure the same length as a blue whale</em>.
To answer this item, we are to assume that the given gas behaves ideally such that it can follow one of the simplified ideal gas law as written below,
P₁V₁ = P₂V₂
where P is the pressure and V is the volume.
Substituting the known values, while V₂ is unknown,
(100 atm)(10 L) = (1 atm)(V₂)
The value of V₂ is calculated to be equal to 1000 L.
The number of balloons that can be filled is as calculated.
n = (1000 L) / (1 L / balloon)
n = 1000
