1,2-methylcyclohexane, 1,3-methylcyclohexane, 1,4-methylcyclohexane
Because in difrent materials atoms are more compact or less compact.if they are less compact then it will be easear for them to move
Answer:
B
Explanation:
Energy is released, when a gas changes to solid
Answer:
-411 kj
Explanation:
We solve by using this formula
∆U = ∆Q + ∆W
This formula is the first law of thermodynamics
Change in internal energy U = +241
Heat gained by system Q = 652
Putting the value into the equation
+241 = 652 + W
Workdone = 241 - 652
Workdone = -411 kj
Since work done is negative it means that work was done by the system
Answer:
hello hope this helps :)
a pure substance consists only of one element or one compound. a mixture consists of two or more different substances, not chemically joined together.
Explanation: