Answer:
Substance X has the highest temperature because its particles have more kinetic energy.
Explanation:
The temperature of a substance is directly proportional to the average kinetic energy of its particles, according to the equation:
where
is the average kinetic energy of the particles
k is the Boltzmann's constant
T is the absolute temperature of the substance
In this problem, we see that the particles in the two substances have same mass, but particles of substance X travel faster than particles of substance Y, and since the average kinetic energy depends on the square of the speed of hte particles:
we can conclude that particles in substance X have more kinetic energy than particles in substance Y, therefore substance X has higher temperature than substance Y.
Answer:
The final temperature is 85.86°C.
Explanation:
Given that,
Mass of tea = 200 g
Mass of glass = 150 g
Initial temperature = 25°C
We need to calculate the final temperature
When equilibrium is reached, assuming no heat flows to the surroundings
So,
We know that,
Specific heat of tea = 1.00 cal/gm° C
Specific heat of tea = 0.20 cal/gm° C
Put the value into the formula
Put the value of initial temperature
Hence, The final temperature is 85.86°C.
Answer:
Addition of shells increases the distance of outer electrons from the nucleus.
Explanation:
Shielding effect is known as the attraction between the nucleus and an electron of any atom. In other words, it is the reduction in effective nuclear charge on an electron cloud.
Addition of electron shells results in the shielding of electron from nucleus. As the number of electron shells increases then farther will be the electrons placed from the nucleus and hence it will become easier to expel the electrons from outer shells with only little amount of ionization energy.
So, the amount of ionization energy require will be indirectly proportional to the shielding effect because more the shielding of electrons from the nucleus less will be the ionization energy require to expel the electrons.
When a Craton is exposed at earth's surface, it is called a continental shield. Continental shield is any of the large stable areas of low relief in the Earth's crust that are composed of Precambrian Crystalline rocks. Shield areas are regarded as continental nuclei, the observation often being made that most continental shields are bordered by belts of folded rocks of post-Precambrian age.
Answer:
• visual representation of their results
• influence the public
a. visually driven society
b. when looking at a graph of experimental results,
always ask yourself if the researchers have an ulterior
motive
Explanation:
https://www.oakparkusd.org/cms/lib5/CA01000794/Centricity/Domain/841/Organizing%20Data.pdf
i hope this helps :)