Answer:
True is the correct answer to the above question.
Explanation:
- If x is a string then it can be assigned by the help of two ways in java:
- By the help of constructor:- When we write " x = new String("OH");", then it will create a pass a string "OH" into the constructor. It is because the String is a class in java and x is an object created by the constructor of the String class.
- With the help of assigning: The "x= OH", which assigns the value of x which is an object of String class it can also use the constructor to initialize the "OH" string on the class.
- The above question states the two scenarios which are defined above. Hence the question statement is true.
Answer:
B) a substance made of just one kind of atom that cannot be broken down into something simpler
Explanation:
Elements are what you find on the periodic table of elements.
Take oxygen, for example. You can have one or multiple atoms, but if they are all oxygen atoms it's an element.
Answer:
if you don't understand ask for help thats what i do
Explanation:
<u>Answer:</u> The change in internal energy of the gas is 29.414 kJ.
<u>Explanation:</u>
To calculate the temperature of the gas at different volumes, we use ideal gas equation:
- When volume =
We are given:
Conversion used: 
Putting values in above equation:
- When volume =
We are given:
Putting values in above equation:
- To calculate the change in internal energy, we use the equation:
where,
= change in internal energy = ?
n = number of moles = 4.0 mol
= heat capacity at constant volume = 
= final temperature = 1095.06 K
= initial temperature = 505.41 K
Putting values in above equation, we get:
Converting this value in kilojoules, we use the conversion factor:
1 kJ = 1000 J
So, 
Hence, the change in internal energy of the gas is 29.414 kJ.
