Please help with my chemistry homework! : Fuel burns in a car engine. Describe how oxides of nitrogen are produced in a car engi
1 answer:
You might be interested in
Answer:
The pressure in the new flask would be if the
here acts like an ideal gas.
Explanation:
Assume that the sample here acts like an ideal gas. By Boyle's Law, the pressure
of the gas should be inversely proportional to its volume
.
For example, let the initial volume and pressure of the sample be and
. The new volume
and pressure
of this sample shall satisfy the equation:
.
In this question,
- The initial volume of the gas is
.
- The initial pressure of the gas is
.
- The new volume of the gas is
.
The goal is to find the new pressure of this gas, .
Assume that this sample is indeed an ideal gas. Then the equation should still hold. Rearrange the equation to separate the unknown,
. Note: make sure that the units for
and
are the same before evaluating. That way, the unit of
.
Answer:
High activation energy is the reason behind unsuccessful reaction.
Explanation:
There are two types of reaction: (1) thermodynamically controlled reaction and (2) kinetically controlled reaction.
Thermodynamically controlled reaction are associated with change in enthalpy during reaction. More negative the enthalpy change, more favored will be the reaction.
Kinetically controlled reaction are associated with activation energy of a reaction. The lower the activation energy value, the more rapid will be the reaction.
Here, reaction between and
is thermodynamically favored due to negative enthalpy change but the high activation energy does not allow the reaction to take place by simple mixing.
Answer:
Explanation:
Hello,
In this case, since the Lewis theory is based on the bonds formation between atoms via the valence electrons, we can verify the chemical formula of the compound formed by strontium and nitrogen by noticing that strontium has two valence electrons as it is in group IIA, for that reason, two nitrogens should be available for bonding. Therefore, since nitrogen is in group VA, it is said that three electrons are required to attain the octet (maximum amount bonded electrons), for that reason, three strontiums are should be available for bonding. In such a way, the formula should be:
Regards.