Exothermic means the process of releasing heat and that means u can cross off 3 and 4 so you're left with one and two boiling is definitly a process of releasing heat i would pick choice one because melting it aplying heat so final answer 1
Answer:
Explanation:
usually, the first step is to calculate the moles but since that is already given in the question we can move onto the next step
<em><u>least molar ratio:</u></em>
<em>Cu = </em> = 3
P = = 1
thus, empirical formula =
Answer:
When there is heat at the bottom of this air or water, the air or water molecules in contact with the heat start to move, and the molecules spread apart. The heated air or water becomes less dense. It rises up until it gets to air or water with the same density as it has, and when it gets there, it pushes the air or water that was there out of the way. At the same time, new air or water fills the space that was vacated when the heated molecules rose up. The air or water that gets pushed out of the way falls down. This sets up a circular motion. Air or water is heated at the bottom, travels to the top, cools, gets denser, falls, is heated again and the whole cycle starts again. Convection does not occur in space because there is no gravity. Ovens work by convection. The heating coils at the bottom of the oven heat the air which climbs to the top, cools slightly, and falls down again.
Explanation:
Answer:
T = 1031.30 K
Explanation:
Given data:
Temperature of gas = ?
Number of moles of gas = 0.014 mol
Volume of balloon = 1.20 L
Pressure of gas = 0.988 atm
Solution:
The given problem will be solve by using general gas equation,
PV = nRT
P= Pressure
V = volume
n = number of moles
R = general gas constant = 0.0821 atm.L/ mol.K
T = temperature in kelvin
T = PV/nR
T = 0.988 atm × 1.2 L / 0.014 mol × 0.0821 atm.L/ mol.K
T = 1.186 atm. L / 0.00115 atm.L/K
T = 1031.30 K