Classify steel:
1 answer:
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Answer:
8,19 L
Explanation:
The combined gas law is a equation that can be used <em>when the initial and final conditions -</em>pressure,volume,amount of moles,temperature-, <em>of a gas change</em> during a process. It can be written:
If the amount of the gas remains constant, then n1=n2 and we have:
For the problem we have:
<em>Note: When working with gases is important to use </em><em><u>absolute temperature values (°K, °K=°C+273,15):</u></em>
P1=1 atm, V1=2,5L, T1=25+273,15=298,15°K
P2=0,3 atm, V2=?, T2=20+273,15=293,15°K
The new volume of the balloon is 8,19 L.
Answer:
(a) 140 years
(b) 3.125 pounds
Explanation:
<u>QuestIons</u>
(a) How long is five half-life
(b) How much radioactive strontium is left after five half-life
Given that:
Half-life is about 28 years; &
There are 100 pounds of this radioactive waste
Five half-life will be;
= 28 × 5
= 140 years
The amount of radioactive remaining after five half-life is:
= 100 × 0.03125
= 3.125 pounds