I think it's 1. PCl5= PCl3 + Cl2. I can't tell the exact reason but it's something to do with Atomic Redox Reaction
Carbon dioxide concentrations expected to increase because fossil fuel burning is expected to increase
Answer:
mass of kI = 74.55 Atomic mass
74.55 g ---> 1 mole
48.9 g --> ?
48.9 / 72
0.7 mole.
In one mole of kI --->
An ideal gas is cooled at constant pressure, option A. A. ΔH is less than (more negative) Δ E of the system.
∆H is the exchange in enthalpy from reactants to products A ΔHº charge represents an addition of electricity from the reaction and from the surroundings, resulting in an endothermic response. A horrible cost for ΔHº represents the removal of power from the reaction and into the surroundings and so the reaction is exothermic.
The enthalpy of a system can not be measured right away because of the fact the inner energy consists of additives that are unknown, now not effects available, or aren't of interest in thermodynamics.
Hence, the answer is option A.
Learn more about ideal gas here:-brainly.com/question/20348074
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Disclaimer:- your question is incomplete, please see below for the complete question.
A solid yields a mixture of gases in an exothermic reaction that takes place in a container of variable volume.
A. ΔH is less than (more negative) Δ E of the system.
B. ΔH is greater than ΔE of the system.
C. ΔH is equal to ΔE of the system.
D. can't be determined without more information
