Oracle Tutoring, Campbell River, BC
(250) 203-6544 (text) or (250) 830-0295 (talk)
Self-tutoring about environmental conditions and effects: the tutor looks at snow melt rate. After much snow, we have rain today: the melt is on. Question: how much more quickly will ice melt at 5°C vs 3°C? By Newton’s Law of …
Tutoring chemistry, heat flow between hot and cold substances might be studied. The tutor mentions a reflection about water and ice. Today, while thawing chicken breasts in water, I wondered how much water would be needed to supply the necessary …
The tutor implicates the Clausius-Clapeyron equation to explain why combustion is more difficult at lower temperatures. To burn, a fuel must evaporate.1 In colder temperatures, fuel has less tendency to evaporate. For two specific temperatures (T1 and T2), the Clausius-Clapeyron …
Physical chemistry: vapor pressure: why a car may be harder to start in the winter Read more »
The tutor introduces an interesting law from chemistry. Amonton’s Law states that the pressure of a gas is directly related to its absolute temperature: P=kT, where k is some constant. Amonton’s Law needs the conditions of constant moles of gas …
The tutor looks more specifically into the effect of compression on gas temperature. In my January 20 post I began about thermodynamics and the effect of compressing a gas. Today, I’ll give more specific coverage. The temperature rise a gas …
Chemistry, thermodynamics: temperature increase caused by compression, continued Read more »
The tutor offers definitions of diffuse and effuse, two related terms from chemistry. To diffuse is to spread out, while to effuse is to escape. A gas will diffuse through the atmosphere, while it will effuse through a hole in …
The tutor examines the idea that internal combustion engines are more efficient in cold weather. An upper limit for efficiency of an internal combustion engine is eff = (Tcombust – Tsurrounding)/Tcombust where Tcombust is the temp of the combustion cylinder …
Physical chemistry: efficiency of internal combustion engine in hot vs cold weather Read more »
The tutor defines the term state function. A state function is one that is independent of path. Another way of explaining it: for a state function, if you end up where you started, nothing has changed. An example of a …