Zero error occur in every reading means that the measuring instrument needs to recalibrated and adjusted.
<h3>
What is Zero error?</h3>
This error occurs when a measuring instrument reflects a digit which isn't zero despite the real value being zero.
When this occurs, only the zero screw on the device should be adjusted so as to correct this technical error. This is why recalibration should be the most appropriate solution.
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Burying all of the methanol results in a hotter temperature so because flaming is attempting to ignite the dried salts.
That's because as the methanol is eaten to the finish, the flame approaches the dry salts and attempts to ignite them.
It is therefore critical to extinguish the flame even before methanol is entirely consumed.
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<u>Answer:</u> of the reaction will be negative, of the reaction will be positive and of the reaction will be negative.
<u>Explanation:</u>
Thermodynamic properties are enthalpy change , entropy change and Gibbs free energy
Exothermic reactions are defined as the reactions in which energy is released in the form of heat. The enthalpy change of the reaction comes out to be negative for this kind of reaction.
Entropy change is defined as the change in the measure of randomness in the reaction. It is represented as . Randomness of gaseous particles is more than that of liquid which is further more than that of solids.
For the given exothermic reaction:
As, number of gaseous particles on the product side is more than the number of gaseous particles on the reactant side. So, the entropy change is positive. Hence, is positive.
The above reaction is spontaneous. Thus, the Gibbs free energy will be negative.
For the given reaction:
Answer:
for the force that sent the person forward, there is an equal force pushing back on the skateboard