An iron nail with a mass of 12 g absorbs 12 J of heat.
1 answer:
Answer:
27.25°C
Explanation:
hello,
this question involves heat transfer in an object and to find the final temperature, we'll use formula for heat transfer
data;
mass = 12g
heat energy (Q) = 12J
initial temperature (T1) = 25°C
final temperature (T2) = x
specific heat capacity (c) = 0.444J/g°C
heat energy(Q) = mcΔt
Q = mc(T2 - T1)
the final temperature was 27.25°C
You might be interested in
Answer:
Statements Y and Z.
Explanation:
The Van der Waals equation is the next one:
(1)
The ideal gas law is the following:
(2)
<em>where n: is the moles of the gas, R: is the gas constant, T: is the temperature, P: is the measured pressure, V: is the volume of the container, and a and b: are measured constants for a specific gas. </em>
As we can see from equation (1), the Van der Waals equation introduces two terms that correct the P and the V of the ideal gas equation (2),<u> by the incorporation of the intermolecular interaction between the gases and the gases volume</u>. The term an²/V² corrects the P of the ideal gas equation since the measured pressure is decreased by the attraction forces between the gases. The term nb corrects the V of the ideal gas equation, <u>taking into account the volume occuppied by the gas in the total volume, which implies</u> a reduction of the total space available for the gas molecules.
So, the correct statements are the Y and Z: the non-zero volumes of the gas particles effectively decrease the amount of "empty space" between them and the molecular attractions between gas particles decrease the pressure exerted by the gas.
Have a nice day!