Answer:
dinitrogen trioxide
Explanation:
It's a covalent compound. Using the naming convention of the IUPAC and prefixes.
Question
Answer:
The answer is D
Answer : The enthalpy of fusion of ice is, 334 J
Solution :
Formula used :
Where,
q = heat absorb = 6.68 KJ = 6680 J
m = mass of ice = 20 g
= enthalpy of fusion of ice = ?
Now put all the given values in this formula, we get the enthalpy of fusion of ice.
Therefore, the enthalpy of fusion of ice is, 334 J
Answer:
T(K) = 373.15 K
Explanation:
The kelvin is the base unit of temperature in the International System of Units (SI). The symbol used to express temperature in kelvins is K.
The temperature of zero kelvins is called the absolute zero. It is considered to be the lowest possible temperature, although nothing has reached it. The absolute zero (0K) is - 273.15 degrees Celsius.
This is the equation we can use to solve this question:
We have 100*C.
Which statement describes this change?
(1) It is endothermic, and entropy decreases.
(2) It is endothermic, and entropy increases.
(3) It is exothermic, and entropy decreases.
(4) It is exothermic, and entropy increases.
Answer: (2) It is endothermic, and entropy increases.
Explanation: Endothermic reactions are those in which heat is absorbed by the system and exothermic reactions are those in which heat is released by the system.
Entropy is the measure of randomness or disorder of a system. If a system moves from an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa.
In the given reaction:
The energy is absorbed by the reactants and thus it is endothermic and the solid reactants are converting to gaseous products, thus the entropy increases.